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Journal articles on the topic 'Magnetic photonic crystal'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Woliński, Tomasz, Sławomir Ertman, Katarzyna Rutkowska, et al. "Photonic Liquid Crystal Fibers – 15 years of research activities at Warsaw University of Technology." Photonics Letters of Poland 11, no. 2 (2019): 22. http://dx.doi.org/10.4302/plp.v11i2.907.

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Research activities in the area of photonic liquid crystal fibers carried out over the last 15 years at Warsaw University of Technology (WUT) have been reviewed and current research directions that include metallic nanoparticles doping to enhance electro-optical properties of the photonic liquid crystal fibers are presented. Full Text: PDF ReferencesT.R. Woliński et al., "Propagation effects in a photonic crystal fiber filled with a low-birefringence liquid crystal", Proc. SPIE, 5518, 232-237 (2004). CrossRef F. Du, Y-Q. Lu, S.-T. Wu, "Electrically tunable liquid-crystal photonic crystal fiber

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2

Hao, Shi. "Study on the Eﬀect of Material Absorption of Photonic Crystals on Transverse Magnetic Wave Band". Materials Physics and Chemistry 1, № 1 (2018): 34. http://dx.doi.org/10.18282/mpc.v1i1.562.

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<p align="justify">Photonic crystals are a major discovery in physics and have an important inﬂuence on our present life. The biggest feature of the photonic crystals is that they have bandgap which can block photons of a certain frequency, thus affecting the photon movement. This effect resembles the inﬂuence of the semiconductor body on electrons. Therefore, research and discovery of the photonic crystal have a broad prospect and people have large expectation on the photonic crystal. The emergence of photonic crystals makes it possible for the miniaturization and integration of some as

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3

BAERT, KASPER, WIM LIBAERS, BRANKO KOLARIC, et al. "DEVELOPMENT OF MAGNETIC MATERIALS FOR PHOTONIC APPLICATIONS." Journal of Nonlinear Optical Physics & Materials 16, no. 03 (2007): 281–94. http://dx.doi.org/10.1142/s0218863507003779.

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In this manuscript, the synthesis and characterization of superparamagnetic particles and their silica-coated counterparts as building blocks for magnetic photonic crystals is fully described. The advantages and disadvantages of the presented synthetic method are discussed. Preliminary results considering the presence of magnetic species within a photonic crystal are also presented. Suppression of emission of the quantum dots within photonic crystals is attributed to a decrease of the number of available photonic modes for radiative decay. The presence of materials with permanent magnetic mome

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Olyaee, Saeed. "Ultra-fast and compact all-optical encoder based on photonic crystal nano-resonator without using nonlinear materials." Photonics Letters of Poland 11, no. 1 (2019): 10. http://dx.doi.org/10.4302/plp.v11i1.890.

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In this paper an ultra-compact all-optical encoder is presented by using a two-dimensional photonic crystal. The designed logic gate is based on the interference effect. The proposed structure consists of several photonic crystal waveguides connected by 2 nano-resonators. The nano-resonators are designed to reduce the size of the radius of the dielectric rods. The contrast ratios and delay time for the proposed all-optical encoder are respectively 6 dB and 125 fs. The size of the structure is equal to 132 µm2. Equality of the output power in the logic states “one”, the small dimensions, the lo

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Christensen, Thomas, Charlotte Loh, Stjepan Picek, et al. "Predictive and generative machine learning models for photonic crystals." Nanophotonics 9, no. 13 (2020): 4183–92. http://dx.doi.org/10.1515/nanoph-2020-0197.

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AbstractThe prediction and design of photonic features have traditionally been guided by theory-driven computational methods, spanning a wide range of direct solvers and optimization techniques. Motivated by enormous advances in the field of machine learning, there has recently been a growing interest in developing complementary data-driven methods for photonics. Here, we demonstrate several predictive and generative data-driven approaches for the characterization and inverse design of photonic crystals. Concretely, we built a data set of 20,000 two-dimensional photonic crystal unit cells and

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Povinelli, M. L., Steven G. Johnson, J. D. Joannopoulos, and J. B. Pendry. "Toward photonic-crystal metamaterials: Creating magnetic emitters in photonic crystals." Applied Physics Letters 82, no. 7 (2003): 1069–71. http://dx.doi.org/10.1063/1.1544428.

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Liu, Hailu, Dong Xie, Huayan Shen, Fayong Li, and Junjia Chen. "Functional Micro–Nano Structure with Variable Colour: Applications for Anti-Counterfeiting." Advances in Polymer Technology 2019 (December 8, 2019): 1–26. http://dx.doi.org/10.1155/2019/6519018.

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Colour patterns based on micro-nano structure have attracted enormous research interests due to unique optical switches and smart surface applications in photonic crystal, superhydrophobic surface modification, controlled adhesion, inkjet printing, biological detection, supramolecular self-assembly, anti-counterfeiting, optical device and other fields. In traditional methods, many patterns of micro-nano structure are derived from changes of refractive index or lattice parameters. Generally, the refractive index and lattice parameters of photonic crystals are processed by common solvents, salts

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8

Hsiao, Fu-Li, Chia-Ying Ni, Ying-Pin Tsai, et al. "Design of Waveguide Polarization Convertor Based on Asymmetric 1D Photonic Crystals." Nanomaterials 12, no. 14 (2022): 2454. http://dx.doi.org/10.3390/nano12142454.

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Photonic crystals possess metastructures with a unique dispersion relation. An integrated optical circuit plays a crucial role in quantum computing, for which miniaturized optical components can be designed according to the characteristics of photonic crystals. Because the stable light transmission mode for a square waveguide is transverse electric or transverse magnetic polarization, we designed a half-waveplate element with a photonic crystal that can rotate the polarization direction of the light incident on a waveguide by 90°. Using the dispersion relation of photonic crystals, the polariz

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Zhang, Zheng, Wenjun Zhang, and Lunwu Zeng. "Analyzing photonic space-time crystal with FDTD." Modern Physics Letters B 34, no. 06 (2020): 2050082. http://dx.doi.org/10.1142/s0217984920500827.

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When space (time) translation symmetry is spontaneously broken, the space crystal (time crystal) forms; when permittivity and permeability periodically vary with space (time), the photonic space crystal (photonic time crystal) forms. We rewrote Maxwell’s equations in photonic time crystal, and discretized Maxwell’s equations with finite difference time domain (FDTD) method, deduced the discretized electric and magnetic field, and simulated electromagnetic wave propagation in two-dimensional (2D) photonic space-time crystal and photonic space crystal (or photonic crystal), and discussed the eff

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Ozer, Zafer, Amirullah M. Mamedov, and Ekmel Ozbay. "BaTiO3 based photonic time crystal and momentum stop band." Ferroelectrics 557, no. 1 (2020): 105–11. http://dx.doi.org/10.1080/00150193.2020.1713355.

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Temporally periodic photonic crystals develop an ω-k dispersion relation with momentum band gaps. While conventional photonic crystals induce forbidden bands in the frequency spectrum of photons, photonic time crystals create forbidden regions in the momentum spectrum of photons. This effect allows for enhanced control over many optical processes that require both photonic energy and momentum conservations such as nonlinear harmonic generation. The simulation results show that more intensive scatter fields can obtained in photonic space time crystal. Also, we investigate topological phase tran

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11

Nisha, Narendra Kumar, and Bhuvneshwer Suthar. "Design of Linear Magnetic Field Sensor Based on Periodically Magnetized Cold Plasma." Journal of Condensed Matter 1, no. 01 (2023): 14–19. http://dx.doi.org/10.61343/jcm.v1i01.4.

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We have analyzed the impact of a linear magnetic field on the photonic band gaps exhibited by bulk cold plasma, under external square-wave-like periodic magnetic field of fixed magnitude, conceived as an extrinsic photonic crystal. Here photonic band gaps are determined using transfer matrix method (TMM). Here, the impact of an additional linear magnetic field is determined on the band gaps of plasma photonic crystal with constant magnitude of square like periodic magnetic field, for normal incidence. We determine how the additional and magnetic magnetic field affects the photonic band structu

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Gao, Kuangya, Yueqiang Liang, Chengyu Liu, Yafeng He, Weili Fan, and Fucheng Liu. "Structural Tunable Plasma Photonic Crystals in Dielectric Barrier Discharge." Applied Sciences 10, no. 16 (2020): 5572. http://dx.doi.org/10.3390/app10165572.

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We demonstrate a kind of structural tunable plasma photonic crystal in a dielectric barrier discharge by self-organization of the plasma filaments. The symmetry, the lattice constant and the orientations of different plasma photonic crystals can be deliberately controlled by changing the applied voltage. The plasma structures can be tuned from a square lattice to a triangular lattice, the lattice constant is reduced and the crystal orientation varies π6 when the applied voltage is increased. The band diagrams of the plasma photonic crystals under a transverse-magnetic wave have been studied, w

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Liu, Y. J., and X. W. Sun. "Holographic Polymer-Dispersed Liquid Crystals: Materials, Formation, and Applications." Advances in OptoElectronics 2008 (April 27, 2008): 1–52. http://dx.doi.org/10.1155/2008/684349.

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By combining polymer-dispersed liquid crystal (PDLC) and holography, holographic PDLC (H-PDLC) has emerged as a new composite material for switchable or tunable optical devices. Generally, H-PDLC structures are created in a liquid crystal cell filled with polymer-dispersed liquid crystal materials by recording the interference pattern generated by two or more coherent laser beams which is a fast and single-step fabrication. With a relatively ideal phase separation between liquid crystals and polymers, periodic refractive index profile is formed in the cell and thus light can be diffracted. Und

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14

Poudereux, David, Manuel Cano-García, Domenico Alj, et al. "Recording Policryps structures in photonic crystal fibers." Photonics Letters of Poland 9, no. 1 (2017): 5. http://dx.doi.org/10.4302/plp.v9i1.700.

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Policryps structures of photo-curable adhesive NOA61 and nematic liquid crystal mixture E7 have been created inside selected microchannels of photonic crystal fibers (PCF). The PCF was selectively infiltrated with the photopolymer-liquid crystal mixture for the writing of a holographic tunable grating inside specific holes of the photonic fiber. A 2um pitch grating was successfully recorded in the PCF inner holes with and without collapsing the fiber cladding. The liquid crystal is properly aligned in both cases. Full Text: PDF ReferencesQ. Liu, et al., "Tunable Fiber Polarization Filter by Fi

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15

Chychłowski, Miłosz, and Tomasz Woliński. "Frequency dependence of electric field tunability in a photonic liquid crystal fiber based on gold nanoparticles-doped 6CHBT nematic liquid crystal." Photonics Letters of Poland 12, no. 4 (2020): 115. http://dx.doi.org/10.4302/plp.v12i4.1070.

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In this paper, we investigate an external electric field frequency influence on a photonic liquid crystal fiber (PLCF) based on a gold nanoparticles (NPs)-doped nematic liquid crystal (LC) and its response to the external electric field. We used a 6CHBT nematic LC doped with 2-nm gold NPs in a weight concentration of 0.1%, 0.2%, 0.3%, and 0.5%. Full Text: PDF ReferencesJ. C. Knight, T. A. Birks, P. St. J. Russell, and D. M. Atkin, "All-silica single-mode optical fiber with photonic crystal cladding," Opt. Lett. 21, 1547-1549 (1996) CrossRef J. C. Knight,T. A. Birks, P. S. J.Russell, , and J. P

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Kazanskiy, Nikolai Lvovich, and Muhammad Ali Butt. "One-dimensional photonic crystal waveguide based on SOI platform for transverse magnetic polarization-maintaining devices." Photonics Letters of Poland 12, no. 3 (2020): 85. http://dx.doi.org/10.4302/plp.v12i3.1044.

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In this letter, a TM-polarization C-band pass one-dimensional photonic crystal strip waveguide (1D-PCSW) is presented. The waveguide structure is based on a silicon-on-insulator platform which is easy to realize using standard CMOS technology. The numerical study is conducted via 3D-finite element method (FEM). The transmittance and polarization extinction ratio (PER) is enhanced by optimizing the geometric parameters of the device. As a result, a TM polarized light can travel in the waveguide with ~2 dB loss for all C-band telecommunication wavelength window whereas the TE polarized light suf

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Yan, Lili, Qichao Wang, Bin Yin, et al. "Research on Simultaneous Measurement of Magnetic Field and Temperature Based on Petaloid Photonic Crystal Fiber Sensor." Sensors 23, no. 18 (2023): 7940. http://dx.doi.org/10.3390/s23187940.

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In this paper, we propose and design a magnetic field and temperature sensor using a novel petaloid photonic crystal fiber filled with magnetic fluid. The PCF achieves a high birefringence of more than 1.43 × 10−2 at the wavelength of 1550 nm via the design of material parameters, air hole shape and the distribution of the photonic crystal fiber. Further, in order to significantly improve the sensitivity of the sensor, the magnetic-fluid-sensitive material is injected into the pores of the designed photonic crystal fiber. Finally, the sensor adopts a Mach–Zehnder interferometer structure combi

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Al-Hmoud, Mohannad, and Rasha Alyahyan. "High sensitivity and low detection limit sensor based on a slotted nanobeam cavity." Photonics Letters of Poland 14, no. 3 (2022): 59. http://dx.doi.org/10.4302/plp.v14i3.1161.

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In this work, the three-dimensional finite-difference time-domain (3D-FDTD) method is used to design and analyze a refractive index sensor based on a slotted photonic crystal nanobeam cavity. These type of cavities support a high quality-factor and a small volume, and therefore is attractive for optical sensing. We demonstrate that when immersing our proposed sensor in water it can possess a high-quality factor of 2.0×10^6, high sensitivity of 325 nm/RIU, and a detection limit of 2.4×10^(-7) RIU. We believe that our proposed sensor is a promising candidate for potential applications sensing li

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SONG, KAI, RENAUD VALLEE, MARK VAN DER AUWERAER, and KOEN CLAYS. "SPONTANEOUS EMISSION OF NANO-ENGINEERED FLUOROPHORES IN PHOTONIC CRYSTALS." Journal of Nonlinear Optical Physics & Materials 15, no. 01 (2006): 1–8. http://dx.doi.org/10.1142/s0218863506003128.

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The spontaneous emission of fluorophores embedded in a photonic crystal has been studied. By nano-engineering a sandwich-like photonic structure, such that fluorophore-coated photonic atoms constitute a middle layer between the photonic crystals, we have been able to precisely control the location of fluorophores in photonic crystals and exclude the presence of fluorophores at the surface of the crystal. It has been found that the stopband in the transmission spectrum is deeper than the stopband in the emission spectrum. We conjecture that the omnidirectional propagation of the emission from a

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20

Hu, Jian-Xia, and Yun-Tuan Fang. "Magnet-controlled surface defect modes of photonic crystal." International Journal of Modern Physics B 29, no. 22 (2015): 1550159. http://dx.doi.org/10.1142/s0217979215501593.

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In order to obtain tunable surface modes of photonic crystal, we add a magnetic material layer on the truncated surface of a two-dimensional photonic crystal. Through calculations of photonic band, we obtain the surface defect modes in the first and second gaps. Through the modulation of applied magnetic field, we can control the frequency, the group velocity and the exciting incidence direction of the surface defect mode. In particular, in the frequency range of surface defect modes, we can tune the group velocity to zero.

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21

Zhang, Jinying, Yexiaotong Zhang, Jiaxing Yang, and Xinye Wang. "Beyond Color Boundaries: Pioneering Developments in Cholesteric Liquid Crystal Photonic Actuators." Micromachines 15, no. 6 (2024): 808. http://dx.doi.org/10.3390/mi15060808.

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Creatures in nature make extensive use of structural color adaptive camouflage to survive. Cholesteric liquid crystals, with nanostructures similar to those of natural organisms, can be combined with actuators to produce bright structural colors in response to a wide range of stimuli. Structural colors modulated by nano-helical structures can continuously and selectively reflect specific wavelengths of light, breaking the limit of colors recognizable by the human eye. In this review, the current state of research on cholesteric liquid crystal photonic actuators and their technological applicat

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Zhang, Chencheng, Shengli Pu, Zijian Hao, Boyu Wang, Min Yuan, and Yuxiu Zhang. "Magnetic Field Sensing Based on Whispering Gallery Mode with Nanostructured Magnetic Fluid-Infiltrated Photonic Crystal Fiber." Nanomaterials 12, no. 5 (2022): 862. http://dx.doi.org/10.3390/nano12050862.

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A kind of novel and compact magnetic field sensor has been proposed and investigated experimentally. The proposed sensor consists of a tapered single mode fiber coupled with a nanostructured magnetic fluid-infiltrated photonic crystal fiber, which is easy to be fabricated. The response of magnetic fluid to magnetic field is used to measure the intensity of magnetic field via whispering gallery mode. The magnetic field-dependent shift in resonance wavelength is observed. The maximum magnetic field intensity sensitivity is 53 pm/mT. The sensor sensitivity is inversely proportional to the thickne

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23

Zhang, Haiping, Zhifeng Zeng, and Yong Wang. "Tellurium Photonic Crystal-Based Terahertz Polarization Splitter Using a Diamond-Shaped Ferrite Pillar Array." Crystals 14, no. 12 (2024): 1015. http://dx.doi.org/10.3390/cryst14121015.

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A T-shaped photonic crystal waveguide was designed with square lattice tellurium photonic crystals. A diamond-shaped ferrite pillar array was inserted in the junction of the waveguide to make a novel terahertz polarization splitter. Both transverse electric and transverse magnetic modes were numerically investigated by the plane wave expansion method, which used complete photonic band gaps covering from 0.138 THz to 0.144 THz. In this frequency domain of the fully polarized band gaps, the transmission efficiency of the photonic crystal waveguide was up to −0.21 dB and −1.67 dB for the transver

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Li, Rong, and Miguel Levy. "Bragg grating magnetic photonic crystal waveguides." Applied Physics Letters 86, no. 25 (2005): 251102. http://dx.doi.org/10.1063/1.1951059.

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Suthar, Bhuvneshwer, and Narendra Kumar. "Magnetic Sensor Using Extrinsic Photonic Crystal." Advanced Science, Engineering and Medicine 10, no. 7 (2018): 854–56. http://dx.doi.org/10.1166/asem.2018.2257.

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Wu, Jun, and Ye Ming Qing. "Strong nonreciprocal radiation with topological photonic crystal heterostructure." Applied Physics Letters 121, no. 11 (2022): 112201. http://dx.doi.org/10.1063/5.0109402.

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A nonreciprocal thermal emitter, which consists of a magnetic Weyl semimetal embedded in a topological photonic crystal, is proposed and investigated. An emitter exhibits strong nonreciprocal radiation, which results from the exaction of a topological photonic state between two photonic crystals (PhCs). The underlying physical mechanism of such behaviors is disclosed by illustrating magnetic field intensity distributions at resonances and is further confirmed by investigating the band diagram and the Zak phases of the two PhCs. Aside from that, radiation properties of the proposed emitter rema

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Chen, Xiaoshuang, Renlong Zhou, Yong Zeng, Hongbo Chen, and Wei Lu. "Far-Field Focus and Dispersionless Anticrossing Bands in Two-Dimensional Photonic Crystals." Advances in OptoElectronics 2007 (October 30, 2007): 1–8. http://dx.doi.org/10.1155/2007/61034.

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We review the simulation work for the far-field focus and dispersionless anticrossing bands in two-dimensional (2D) photonic crystals. In a two-dimensional photonic-crystal-based concave lens, the far-field focus of a plane wave is given by the distance between the focusing point and the lens. Strong and good-quality far-field focusing of a transmitted wave, explicitly following the well-known wave-beam negative refraction law, can be achieved. The spatial frequency information of the Bloch mode in multiple Brillouin zones (BZs) is investigated in order to indicate the wave propagation in two

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Prudêncio, Filipa R., and Mário G. Silveirinha. "First Principles Calculation of the Topological Phases of the Photonic Haldane Model." Symmetry 13, no. 11 (2021): 2229. http://dx.doi.org/10.3390/sym13112229.

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Photonic topological materials with a broken time-reversal symmetry are characterized by nontrivial topological phases, such that they do not support propagation in the bulk region but forcibly support a nontrivial net number of unidirectional edge-states when enclosed by an opaque-type boundary, e.g., an electric wall. The Haldane model played a central role in the development of topological methods in condensed-matter systems, as it unveiled that a broken time-reversal symmetry is the essential ingredient to have a quantized electronic Hall phase. Recently, it was proved that the magnetic fi

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Xu, Jun, Yuanyuan Gao, and Haidong You. "A Novel Structured Magnetic Field Sensor Based on Photonic Crystal Fiber Filled with Magnetic Fluid." Crystals 12, no. 10 (2022): 1383. http://dx.doi.org/10.3390/cryst12101383.

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A novel structured magnetic field sensor based on dual-core photonic crystal fiber is proposed which has two elliptical central holes filled with magnetic fluid and some elliptical cladding air holes. The transmission characteristics of the dual-core photonic crystal fiber such as coupling length, birefringence, and coupling loss are analyzed with changing structural parameters. Enhanced birefringence is obtained by the novel structure of two elliptical central holes and some elliptical cladding air holes. The sensitivity of the magnetic sensor is calculated, and the numerical simulation resul

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Islam, Mohammad Saiful, Anwar Sadath, Md Rakibul Islam, and Mohammad Faisal. "Comparative Analysis of Highly Sensitive PCF for Chemical Sensing in THz Regime." Photonics Letters of Poland 12, no. 4 (2020): 94. http://dx.doi.org/10.4302/plp.v12i4.999.

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Nowadays photonic crystal fiber (PCF) is used for sensing purposes in different fields. In this work, we have proposed a PCF based chemical (Benzene and Ethanol) sensor. Finite Element Method (FEM) based software COMSOL 5.3a is used to investigate the numerical characteristics for the proposed structure. From the numerical analysis, we obtained high sensitivity with low losses for an optimum core diameter of 210 µm. Our proposed PCF works on a broad range of core diameters and THz frequency spectra. The fabrication of this model is very simple due to its simplistic design structure. Full Text:

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Sharifi, Maryam, Behrooz Rezaei, Hamid Pashaei Adl, and Mohammad Sadegh Zakerhamidi. "Tunable Fano resonance in coupled topological one-dimensional photonic crystal heterostructure and defective photonic crystal." Journal of Applied Physics 133, no. 8 (2023): 083102. http://dx.doi.org/10.1063/5.0135235.

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In this paper, we theoretically investigate the transmission properties of a structure composed of a topological one-dimensional photonic crystal (1D PhC) heterostructure and a conventional 1D PhC containing indium-antimonide (InSb) as a defect layer using the transfer matrix method. The phenomenon of Fano resonance can be achieved by coupling the defect mode with the topological edge state mode, which is supported by the topological PhC. The numerical results show that a narrow Fano resonance is observed in the transmission spectrum of the structure in the presence of the external magnetic fi

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Liu, Exian, and Jianjun Liu. "Quasiperiodic photonic crystal fiber [Invited]." Chinese Optics Letters 21, no. 6 (2023): 060603. http://dx.doi.org/10.3788/col202321.060603.

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Liu, Wei, Xuefeng Liu, Jiabao Ren, Chen Cui, and Shujie Xu. "Chemically/Magnetically Dual-Responsive Nanoparticles for Multipurpose Colorimetric Sensor." E3S Web of Conferences 213 (2020): 02025. http://dx.doi.org/10.1051/e3sconf/202021302025.

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Magnetically responsive colloidal photonic crystals can change their structural color according to the external magnetic field, which has been widely studied in recent years. However, due to lack of recognition ability towards non-magnetic analytes, these photonic crystals can be applied to constructing a sensor only when an additional stimuli responsive unit is involved. To address this problem, we used a functional protein to modify the magnetically responsive colloidal particles to construct chemically/magnetically dualresponsive nanoparticles. For a proof of concept research in this manusc

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SUMMERS, CHRISTOPHER J., CURTIS W. NEFF, and WOUNJHANG PARK. "ACTIVE PHOTONIC CRYSTAL NANO-ARCHITECTURES." Journal of Nonlinear Optical Physics & Materials 12, no. 04 (2003): 587–97. http://dx.doi.org/10.1142/s0218863503001663.

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The development of nano-scaled photonic crystal structures has resulted in many new devices exhibiting non-classical optical behavior. Typically, in these structures a photonic band gap and associated defect mode are used to create waveguides, resonators, couplers and filters. In this paper we propose that the functionality of these structures can be significantly enhanced by the infiltration of the photonic crystal with other classes of materials, particularly highly nonlinear liquid crystals and electro-optical materials. The properties of conventional 2D PC slab waveguides were simulated by

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Zhao, Lingzhong, Guangfeng Wen, Lin Zhang, et al. "Reconfigurable unidirectional propagation of electromagnetic waves in photonic crystal waveguides." Journal of the Optical Society of America B 39, no. 9 (2022): 2443. http://dx.doi.org/10.1364/josab.457969.

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We demonstrate reconfigurable unidirectional propagation of electromagnetic waves in waveguide channels sandwiched by two dielectric photonic crystal (PC) slabs or magnetic PC (MPC) slabs, where the extrinsic and intrinsic responses emerge in two kinds of systems. Concretely, the unidirectionality of the MPC system originates from the time-reversal symmetry breaking nature of magnetic material, while in the dielectric PC system, the unidirectionality is achieved by active control of two separated line sources. The results indicate that in the MPC based system, not only the amplitude but also t

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Kajkowska, Marta, Miłosz Chychłowski, and Piotr Lesiak. "Influence of photopolymerization on propagation properties of photonic crystal fiber infiltrated with liquid crystal mixture." Photonics Letters of Poland 14, no. 3 (2022): 68. http://dx.doi.org/10.4302/plp.v14i3.1166.

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In this paper we analyze the influence of the photopolymerization process on propagation properties of photonic crystal fiber infiltrated with liquid crystal doped with a mixture of reactive monomer and photoinitiator. The obtained results showed changes in photonic band gap of the fiber due to refractive index change of the liquid crystal mixture caused by the polymerization process. Moreover, the research demonstrated the possibility of preserving the desired molecular orientation of liquid crystal initially stabilized by placing the sample in the external electric field. This was achieved b

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JONSSON, FREDRIK, and CHRISTOS FLYTZANIS. "OPTICAL AMPLITUDE AND PHASE EVOLUTION IN NONLINEAR MAGNETO-OPTICAL BRAGG GRATINGS." Journal of Nonlinear Optical Physics & Materials 13, no. 01 (2004): 129–54. http://dx.doi.org/10.1142/s0218863504001803.

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We present a theory on stratified nonlinear magneto-photonic crystals, with arbitrary spatial distribution of the refractive index and magneto-optical coefficients. The coupled mode theory is formulated for plane waves inside the crystal, and a perturbation series of integral solutions for the spectral response of the crystal is presented. Material issues and configurations are discussed, and the described theory is applied to the calculation of transmission spectra of binary magneto-photonic crystals.

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Yan, Chao, Yuhao Huang, Zhi-Yuan Li, and Wenyao Liang. "Controllable Pseudospin Topological Add-Drop Filter Based on Magnetic–Optical Photonic Crystals." Nanomaterials 14, no. 11 (2024): 919. http://dx.doi.org/10.3390/nano14110919.

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We propose a controllable topological add-drop filter based on magnetic–optical photonic crystals. This add-drop filter is composed of two straight waveguides and a hexagonal photonic crystal ring resonator. The waveguide and ring resonator are constructed by three different honeycomb magnetic–optical photonic crystals. The expanded lattice is applied with an external magnetic field so that it breaks time-reversal symmetry and the analogous quantum spin Hall effect simultaneously. While the standard one and the compressed one are not magnetized and trivial, the straight waveguide supports pseu

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Ma, Huiru, Yali Tan, Jie Cao, et al. "Eccentric 1-D magnetic core–shell photonic crystal balls: ingenious fabrication and distinctive optical properties." Journal of Materials Chemistry C 6, no. 16 (2018): 4531–40. http://dx.doi.org/10.1039/c8tc00640g.

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Eccentric 1-D photonic crystal balls fabricated by light intensity-guided morphology-controllable polymerization demonstrate self-displaying structural colors and dynamically tunable bi-photonic band-gaps by the direction and intensity of the magnetic field.

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Hu, Hai Bo, Qian Wang Chen, Ran Li, Xiang Kai Kong, and Jian Chen. "Exploration of the Structures of the Magnetically Induced Self-Assembly Photonic Crystals in a Solidified Polymer Matrix." Advanced Materials Research 634-638 (January 2013): 2324–31. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.2324.

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The carbon-encapsulated superparamagnetic colloidal nanoparticles (SCNps) were rigidized into soft solids by embedding the SCNps into polyacrylamide hydrogel matrixes under the induction of an external magnetic field. Stabilized by the balance of attractive (magnetic) and repulsive (electrostatic) forces, the SCNps form one-dimension photonic crystal structures along the direction of the external magnetic field and further the structures are frozen into the solidified polymer matrix. The polymer matrix embedded one-dimension photonic crystal structures can strongly diffract visible light and p

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Ji, Yingke, Binbin Wang, Liang Fang, Qiang Zhao, Fajun Xiao, and Xuetao Gan. "Exciting Magnetic Dipole Mode of Split-Ring Plasmonic Nano-Resonator by Photonic Crystal Nanocavity." Materials 14, no. 23 (2021): 7330. http://dx.doi.org/10.3390/ma14237330.

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On-chip exciting electric modes in individual plasmonic nanostructures are realized widely; nevertheless, the excitation of their magnetic counterparts is seldom reported. Here, we propose a highly efficient on-chip excitation approach of the magnetic dipole mode of an individual split-ring resonator (SRR) by integrating it onto a photonic crystal nanocavity (PCNC). A high excitation efficiency of up to 58% is realized through the resonant coupling between the modes of the SRR and PCNC. A further fine adjustment of the excited magnetic dipole mode is demonstrated by tuning the relative positio

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Villa, Francisco, and J. A. Gaspar-Armenta. "Electromagnetic surface waves: photonic crystal–photonic crystal interface." Optics Communications 223, no. 1-3 (2003): 109–15. http://dx.doi.org/10.1016/s0030-4018(03)01644-4.

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Li, Wei, Yong Zhao, Ruizhen Cui, and Haitao Zhang. "Plasma photonic crystal." Frontiers of Optoelectronics in China 2, no. 1 (2009): 103–7. http://dx.doi.org/10.1007/s12200-009-0004-1.

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Luo, Wei, Jindan Yan, Yali Tan, Huiru Ma, and Jianguo Guan. "Rotating 1-D magnetic photonic crystal balls with a tunable lattice constant." Nanoscale 9, no. 27 (2017): 9548–55. http://dx.doi.org/10.1039/c7nr03335d.

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Jayawardana, K. B. S. K. B., and K. A. I. L. Wijewardena Gamalath. "Body Centered Photonic Crystal." International Letters of Chemistry, Physics and Astronomy 66 (May 2016): 96–108. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.66.96.

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The photonic energy bands of body centered cubic photonic crystals formed from SiO2, GaP, Si, InAs, GaAs, InP, Ge and BaSrTiO3 dielectric spheres drilled in air and air holes drilled in these dielectric mediums were calculated using the plane wave expansion method. The filling factor for each dielectric material was changed until a complete energy gap was obtained and then the density of states was calculated. There were no complete band gaps for air spheres drilled in these eight dielectric mediums. The lattice constants were determined by using wavelengths in the region . The variation of th

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Jayawardana, K. B. S. K. B., and K. A. I. L. Wijewardena Gamalath. "Body Centered Photonic Crystal." International Letters of Chemistry, Physics and Astronomy 66 (May 30, 2016): 96–108. http://dx.doi.org/10.56431/p-73d88p.

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The photonic energy bands of body centered cubic photonic crystals formed from SiO2, GaP, Si, InAs, GaAs, InP, Ge and BaSrTiO3 dielectric spheres drilled in air and air holes drilled in these dielectric mediums were calculated using the plane wave expansion method. The filling factor for each dielectric material was changed until a complete energy gap was obtained and then the density of states was calculated. There were no complete band gaps for air spheres drilled in these eight dielectric mediums. The lattice constants were determined by using wavelengths in the region . The variation of th

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Notomi, Masaya, Takasumi Tanabe, Akihiko Shinya, Eiichi Kuramochi, and Hideaki Taniyama. "On-Chip All-Optical Switching and Memory by Silicon Photonic Crystal Nanocavities." Advances in Optical Technologies 2008 (June 22, 2008): 1–10. http://dx.doi.org/10.1155/2008/568936.

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We review our recent studies on all-optical switching and memory operations based on thermo-optic and carrier-plasma nonlinearities both induced by two-photon absorption in silicon photonic crystal nanocavities. Owing to high-Q and small volume of these photonic crystal cavities, we have demonstrated that the switching power can be largely reduced. In addition, we demonstrate that the switching time is also reduced in nanocavity devices because of their short diffusion time. These features are important for all-optical nonlinear processing in silicon photonics technologies, since silicon is no

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R., Hemalatha, and Revathi S. "Photonic Crystal Fiber for Sensing Application." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 5 (2020): 481–94. https://doi.org/10.35940/ijeat.E9613.069520.

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The concern for Sensing Application using photonic crystal had become an elevation in diverse field. Enhanced precision in sensing became an anticipation of users. Photonic crystal fibers are considered to be eccentric than optical fiber sensors due to its geometric structures. By proposing novelty in geometric structures of PCF can increase the sensitivity range as per the required application. In this paper we made a review on different sensors like physical , Curvature, Displacement, Electric and magnetic field, Refractive Index , Bio chemical, Biomedical which are used for sensing applicat

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Anscombe, Nadya. "Photonic crystal pioneer." Nature Photonics 5, no. 8 (2011): 464–65. http://dx.doi.org/10.1038/nphoton.2011.156.

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Khairulazdan, N. B., P. S. Menon, A. R. Md Zain, and D. D. Berhanuddin. "Optimization of photonic crystal structure by FDTD method to improve the light extraction efficiency in silicon." Chalcogenide Letters 19, no. 7 (2022): 493. http://dx.doi.org/10.15251/cl.2022.197.493.

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Silicon photonics technology is on its last hurdle to complete the system with active research on enhancing the light extraction efficiency of silicon. Silicon has a very poor radiative emission efficiency due to its indirect bandgap, thus making the probability of radiative recombination to be very low. The periodic quantum confinement structures such as photonic crystals (PhCs) can be tailored to increase the radiative recombination probability at the desired wavelengths. In this paper, we have optimized the silicon photonic crystal (Si PhCs) parameters to obtain luminescence at silicon band

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