Journal articles: 'Microcavities'

1

Vahala, Kerry J. "Optical microcavities." Nature 424, no. 6950 (August 2003): 839–46. http://dx.doi.org/10.1038/nature01939.

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Xiao, Yun-Feng. "Microcavity-enhanced photoacoustic vibrational spectroscopy of single particles." Journal of the Acoustical Society of America 155, no. 3_Supplement (March 1, 2024): A158. http://dx.doi.org/10.1121/10.0027152.

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Confinement and manipulation of photons using microcavities have triggered intense research interest in both fundamental and applied photonics for more than two decades. Prominent examples are ultrahigh-Q whispering gallery microcavities which confine photons using continuous total internal reflection along a curved and smooth surface. The long photon lifetime, strong field confinement, and in-plane emission characteristics make them promising candidates for enhancing light-matter interactions on a chip. In this talk, I will focus on single-particle photoacoustic vibrational spectroscopy using optical microcavities.

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Samuolienė, N., and E. Šatkovskis. "Reflectivity Modelling of All-Porous-Silicon Distributed Bragg Reflectors and Fabry-Perot Microcavities." Nonlinear Analysis: Modelling and Control 10, no. 1 (January 25, 2005): 83–91. http://dx.doi.org/10.15388/na.2005.10.1.15137.

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Herein, the problem of nanocrystaline silicon laser and its importance in microelectronics are discussed upon. The features of vertical Fabry-Perot microcavities made on the base of porous silicon are described. The responses of the reflectivity of the distributed reflection Bragg mirrors and Fabry-Perot microcavities were found using transfer matrixes method for this purpose. Inherent optical parameters of porous silicon, deposited by electrochemical etch, were used in the calculations. The calculation of the reflectivity of the distributed reflection Bragg mirrors with front active layer of nanostructural porous silicon had been examined. In the second part, the features of Fabry-Perot microcavities on variation of the number of layers of the front or rear mirrors are described. The impact of the thickness of the active nanocrystaline silicon spacer between two distributed reflection Bragg mirrors upon the spectra of optical reflectivity of Fabry-Perot microcavities in the wavelength range of 0.4–0.9 µm had been examined as well. The made conclusions are important for improvement of the thickness of the active porous silicon spacer in front of Bragg mirror and the features of Fabry-Perot microcavities.

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Левин, Г. Г., В. Л. Минаев, К. Н. Миньков, М. М. Ермаков, and А. А. Самойленко. "Исследование внутренней структуры микрорезонаторов методом оптической томографии." Журнал технической физики 126, no. 3 (2019): 305. http://dx.doi.org/10.21883/os.2019.03.47371.148-18.

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AbstractA microscope for studying internal inhomogeneities of the refractive index of optical dielectric microcavities by optical tomography is developed. The influence of these inhomogeneities on the Q factor of optical dielectric microcavities formed by thermal treatment is experimentally studied.

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Yu, Wenqian, Junfeng Gu, Zheng Li, Shilun Ruan, Biaosong Chen, Changyu Shen, Ly James Lee, and Xinyu Wang. "Study on the Influence of Microinjection Molding Processing Parameters on Replication Quality of Polylactic Acid Microneedle Array Product." Polymers 15, no. 5 (February 27, 2023): 1199. http://dx.doi.org/10.3390/polym15051199.

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Biodegradable microneedles with a drug delivery channel have enormous potential for consumers, including use in chronic disease, vaccines, and beauty applications, due to being painless and scarless. This study designed a microinjection mold to fabricate a biodegradable polylactic acid (PLA) in-plane microneedle array product. In order to ensure that the microcavities could be well filled before production, the influences of the processing parameters on the filling fraction were investigated. The results indicated that the PLA microneedle can be filled under fast filling, higher melt temperature, higher mold temperature, and higher packing pressure, although the dimensions of the microcavities were much smaller than the base portion. We also observed that the side microcavities filled better than the central ones under certain processing parameters. However, this does not mean that the side microcavities filled better than the central ones. The central microcavity was filled when the side microcavities were not, under certain conditions in this study. The final filling fraction was determined by the combination of all parameters, according to the analysis of a 16 orthogonal latin hypercube sampling analysis. This analysis also showed the distribution in any two-parameter space as to whether the product was filled entirely or not. Finally, the microneedle array product was fabricated according to the investigation in this study.

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Xu, Guowen. "Whispering-Gallery Mode Lasers: A New Frontier in Micro resonators." Transactions on Computer Science and Intelligent Systems Research 7 (November 25, 2024): 462–67. https://doi.org/10.62051/sycn3t80.

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Whispering Gallery mode (WGM) optical microcavities represent a significant focus in current laser research. Initially, this paper elucidates the concept of WGM and its acoustic significance, before delving into its development in the optical field and its crucial role in optical devices. Subsequently, the author explores the theoretical foundations of WGM, elucidating the photon confinement effect due to total internal reflection. These optical microcavities are noted for their high symmetry and surface smoothness, which confer an exceptionally high Q-factor. The enhanced light-matter interactions in these microcavities lead to substantial improvements in nonlinear optical effects, laser gain, and photonic crystal effects within the amplified optical fields. The author discusses micro resonators, the fabrication methods of microcavities, and the unique nonlinear optical effects arising from high Q-factors and small mode volumes, including Stimulated Brillouin Scattering, Stimulated Raman Scattering, the Kerr effect, and four-wave mixing. These effects hold broad application prospects in fields such as precision spectroscopy, optical communication, and frequency comb generation. The advantages of WGM optical microcavities in laser fabrication and the study of nonlinear optical effects are summarized, with an outlook on their potential applications in future optical fields, such as high-sensitivity sensors and low-threshold lasers.

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Kudashkin, Dmitry V., and Ilya D. Vatnik. "Fabrication of optical WGM microcavities using high-resistance wire." Applied photonics 10, no. 6 (September 25, 2023): 32–42. http://dx.doi.org/10.15593/2411-4375/2023.6.3.

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This paper describes a method for fabricating whispering gallery mode (WGM) optical microcavities based on optical fiber using a nickel-chromium wire. The above method makes it possible to manufacture optical WGM microcavities with high reproducibility and low cost compared to other methods.

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Yang, Chun-Ju, Hai Yan, Naimei Tang, Yi Zou, Yas Al-Hadeethi, Xiaochuan Xu, Hamed Dalir, and Ray T. Chen. "Ultra Sensitivity Silicon-Based Photonic Crystal Microcavity Biosensors for Plasma Protein Detection in Patients with Pancreatic Cancer." Micromachines 11, no. 3 (March 9, 2020): 282. http://dx.doi.org/10.3390/mi11030282.

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Defect-engineered photonic crystal (PC) microcavities were fabricated by UV photolithography and their corresponding sensitivities to biomarkers in patient plasma samples were compared for different resonant microcavity characteristics of quality factor Q and biomarker fill fraction. Three different biomarkers in plasma from pancreatic cancer patients were experimentally detected by conventional L13 defect-engineered microcavities without nanoholes and higher sensitivity L13 PC microcavities with nanoholes. 8.8 femto-molar (0.334 pg/mL) concentration of pancreatic cancer biomarker in patient plasma samples was experimentally detected which are 50 times dilution than ELISA in a PC microcavity with high quality factor and high analyte fill fraction.

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Kraišnik, Milija, Robert Čep, Karel Kouřil, Sebastian Baloš, Aco Antić, and Mladomir Milutinović. "Characterization of Microstructural Damage and Failure Mechanisms in C45E Structural Steel under Compressive Load." Crystals 12, no. 3 (March 19, 2022): 426. http://dx.doi.org/10.3390/cryst12030426.

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In this paper, the microstructural damage evolution of a steel with a ferrite–pearlite microstructure (C45E) was investigated during the process of cold upsetting. The development and the accumulation of microstructural damage were analyzed in different areas of samples that were deformed at different strain levels. The scanning electron microscopy (SEM) results showed that various mechanisms of nucleation of microcavities occurred during the upsetting process. In quantitative terms, microcavities were predominantly generated in pearlite colonies due to the fracture of cementite lamellae. In addition, the mechanism of decohesion had a significant influence on the development of a macroscopic crack, since a high level of microcracks, especially at higher degrees of deformation, was observed at the ferrite/pearlite or ferrite/ferrite interfaces. It was found that the distribution of microcavities along the equatorial plane of the sample was not uniform, as the density of microcavities increased with increasing strain level. The influence of stress state, i.e., stress triaxiality, on the nucleation and distribution of microcracks, was also analyzed.

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Granizo, Evelyn, Pavel Samokhvalov, and Igor Nabiev. "Functionalized Optical Microcavities for Sensing Applications." Nanomaterials 15, no. 3 (January 27, 2025): 206. https://doi.org/10.3390/nano15030206.

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Functionalized optical microcavities constitute an emerging highly sensitive and highly selective sensing technology. By combining optical microcavities with novel materials, microcavity sensors offer exceptional precision, unlocking considerable potential for medical diagnostics, physical and chemical analyses, and environmental monitoring. The high capabilities of functionalized microcavities enable subwavelength light detection and manipulation, facilitating the precise detection of analytes. Furthermore, recent advancements in miniaturization have paved the way for their integration into portable platforms. For leveraging the potential of microcavity sensors, it is crucial to address challenges related to the need for increasing cost-effectiveness, enhancing selectivity and sensitivity, enabling real-time measurements, and improving fabrication techniques. New strategies include the use of advanced materials, the optimization of signal processing, hybrid design approaches, and the employment of artificial intelligence. This review outlines the key strategies toward enhancing the performance of optical microcavities, highlights their broad applicability across various fields, and discusses the challenges that should be overcome to unlock their full potential.

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Stanley, R. P., R. Houdré, U. Oesterle, M. Ilegems, and C. Weisbuch. "Coupled semiconductor microcavities." Applied Physics Letters 65, no. 16 (October 17, 1994): 2093–95. http://dx.doi.org/10.1063/1.112803.

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Shainline, Jeffrey, Stuart Elston, Zhijun Liu, Gustavo Fernandes, Rashid Zia, and Jimmy Xu. "Subwavelength silicon microcavities." Optics Express 17, no. 25 (December 4, 2009): 23323. http://dx.doi.org/10.1364/oe.17.023323.

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13

Kavokin, Alexey. "Polariton diode microcavities." Nature Photonics 3, no. 3 (March 2009): 135–36. http://dx.doi.org/10.1038/nphoton.2009.17.

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Villeneuve, Pierre R., Shanhui Fan, J. D. Joannopoulos, Kuo‐Yi Lim, G. S. Petrich, L. A. Kolodziejski, and Rafael Reif. "Air‐bridge microcavities." Applied Physics Letters 67, no. 2 (July 10, 1995): 167–69. http://dx.doi.org/10.1063/1.114655.

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Kaliteevskii, M. A. "Coupled vertical microcavities." Technical Physics Letters 23, no. 2 (February 1997): 120–21. http://dx.doi.org/10.1134/1.1261848.

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Pavesi, L., C. Mazzoleni, R. Guardini, M. Cazzanelli, V. Pellegrini, and A. Tredicucci. "Porous-silicon microcavities." Il Nuovo Cimento D 18, no. 10 (October 1996): 1213–23. http://dx.doi.org/10.1007/bf02464699.

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17

El-Gamal, A. A., Sh M. Ibrahim, and M. Amin. "Impact of thermal oxidation on the structural and optical properties of porous silicon microcavity." Nanomaterials and Nanotechnology 7 (January 1, 2017): 184798041773570. http://dx.doi.org/10.1177/1847980417735702.

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We report the structural and optical characterization of one-dimensional porous silicon microcavities. These structures are based on a planar resonator formed by two high-reflectance mirrors separated by a thin active optical spacer. In order to simulate and predict the optical properties of the microcavity, the transfer matrix method is used. A strong correlation between the formation parameters and the reflectance spectra is introduced. The prepared microcavities are exposed to thermal oxidation. The resonance position of the microcavity exhibits a blueshift proportional to the degree of oxidation. Structural changes of the microcavities after oxidation are investigated and analyzed using X-ray diffraction and Raman spectroscopy. The observed shift of characteristic silicon peak is attributed to the reduction of silicon crystallites as the oxidation increases.

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Yun, Tinghe, Eliezer Estrecho, Andrew G. Truscott, Elena A. Ostrovskaya, and Matthias J. Wurdack. "Fabrication of high-quality PMMA/SiO_x spaced planar microcavities for strong coupling of light with monolayer WS₂ excitons." Applied Physics Letters 121, no. 8 (August 22, 2022): 081105. http://dx.doi.org/10.1063/5.0094982.

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Exciton polaritons in atomically thin transition metal dichalcogenide crystals (monolayer TMDCs) have emerged as a promising candidate to enable topological transport, ultra-efficient laser technologies, and collective quantum phenomena such as polariton condensation and superfluidity at room temperature. However, integrating monolayer TMDCs into high-quality planar microcavities to achieve the required strong coupling between the cavity photons and the TMDC excitons (bound electron–hole pairs) has proven challenging. Previous approaches to integration had to compromise between various adverse effects on the strength of light–matter interactions in the monolayer, the cavity photon lifetime, and the lateral size of the microcavity. Here, we demonstrate a scalable approach to fabricate high-quality planar microcavities with an integrated monolayer WS2 layer-by-layer by using polymethyl methacrylate/silicon oxide (PMMA/SiO x) as a cavity spacer. Because the exciton oscillator strength is well protected against the required processing steps by the PMMA layer, the microcavities investigated in this work, which have quality factors of above 103, can operate in the strong light–matter coupling regime at room temperature. This is an important step toward fabricating wafer-scale and patterned microcavities for engineering the exciton-polariton potential landscape, which is essential for enabling many proposed technologies.

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Nies, Cordula, Tobias Rubner, Hanna Lorig, Vera Colditz, Helen Seelmann, Andreas Müller, and Eric Gottwald. "A Microcavity Array-Based 4D Cell Culture Platform." Bioengineering 6, no. 2 (May 31, 2019): 50. http://dx.doi.org/10.3390/bioengineering6020050.

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(1) Background: We describe a 4D cell culture platform with which we tried to detect and to characterize migration dynamics of single hematopoietic stem cells in polymer film microcavity arrays integrated into a microtiter plate. (2) Methods: The system was set up with CD34-expressing KG-1a cells as a surrogate for hematopoietic stem cells. We then evaluated the system as an artificial hematopoietic stem cell niche model comprised of a co-culture of human hematopoietic stem cells from cord blood (cord blood CD34+ cells, hHSCs) and human mesenchymal stromal cells (hMSCs) from bone marrow over a period of 21 days. We used a software-based cell detection method to count single hematopoietic stem cells (HSCs) in microcavities. (3) Results: It was possible to detect single HSCs and their migration behavior within single microcavities. The HSCs displayed a pronounced migration behavior with one population of CD34-expressing cells located at the bottom of the microcavities and one population located in the middle of the microcavities at day 14. However, at day 21 the two populations seemed to unite again so that no clear distinction between the two was possible anymore. (4) Conclusions: Single cell migration detection was possible but microscopy and flow cytometry delivered non-uniform data sets. Further optimization is currently being developed.

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Białek, Ewelina, Weronika Gruszczyńska, Maksymilian Włodarski, Malwina Liszewska, and Małgorzata Norek. "Fabrication of Mid-Infrared Porous Anodic Alumina Optical Microcavities via Aluminum Anodization." Materials 17, no. 22 (November 18, 2024): 5620. http://dx.doi.org/10.3390/ma17225620.

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This study reports the production of mid-infrared (MIR) porous anodic alumina (PAA)-based microcavities with tunable optical quality. The spectral position of the cavity resonance peak (λC), along with its intensity (IR) and Q-factor, varies depending on the geometric positioning of the cavity layer within the multilayer stack of alternating low- and high-porosity layers, as well as the type of cavity produced—either by high voltage (CvH-type) or low voltage (CvL-type) pulses. In most cases, PAA microcavities with CvH-type cavity layers exhibited superior light confinement properties compared to those with CvL-type cavities. Additionally, shifting the cavity layer from the center toward the edges of the multilayer stack enhanced the intensity of the resonance peak. For PAA microcavities with CvH-type cavity layers, the highest intensity (IR = 53%) and the largest Q-factor (Q = 31) were recorded at λC of around 5.1 µm. The anodization approach used in this study demonstrates significant potential for designing PAA-based microcavities with high optical performance in the MIR spectral region, especially with further refinement of electrochemical parameters. These findings pave the way for the development of new photonic materials specifically tailored for the MIR spectral range, broadening their applications in various optoelectronic and sensing technologies.

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WEISBUCH, C., H. BENISTY, and R. HOUDRÉ. "MICROCAVITIES, PHOTONIC CRYSTALS AND SEMICONDUCTORS: FROM BASIC PHYSICS TO APPLICATIONS IN LIGHT EMITTERS." International Journal of High Speed Electronics and Systems 10, no. 01 (March 2000): 339–54. http://dx.doi.org/10.1142/s0129156400000362.

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Photon confined systems in the form of microcavities and photonic crystals overcome the main stumbling block to high efficiency light emitters, i.e. the extraction of photons from high-index materials. On the more fundamental side, they lead to the modification of lifetime for sharp transitions (the Purcell effect), recently observed for quantum dots in micropillars, and to strong light-matter coupling for quantum wells embedded in planar microcavities.

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Gauthier-Lafaye, Olivier, Stéphane Calvez, Antoine Monmayrant, Elizabeth Hemsley, Anne-Laure Fehrembach, and Evgueni Popov. "Critical coupling in Cavity Resonator Integrated Grating Filters (CRIGFs) for SHG control." EPJ Web of Conferences 287 (2023): 06007. http://dx.doi.org/10.1051/epjconf/202328706007.

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We demonstrate experimentally critical coupling for nonlinear conversion in grating-coupled Fabry-Pérot planar microcavities known as Cavity-Resonant Integrated Grating Filters (CRIGFs). Novel asymmetric designs offer Q-factors from 1000 to 7000 and allow critical coupling with maximised SHG. We developed an improved coupled-mode model for the linear and non-linear spectral response of CRIGFs which allows accurate insight on the intrinsic and coupling losses in these microcavities.

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Bazhenov, A. Yu, M. M. Nikitina, D. V. Tsarev, and A. P. Alodjants. "Random Laser Based on Materials in the Form of Complex Network Structures." JETP Letters 117, no. 11 (June 2023): 814–20. http://dx.doi.org/10.1134/s0021364023601264.

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The theory of a random laser with an interface in the form of random or scale-free networks whose nodes are occupied by microcavities with quantum two-level systems has been proposed for the first time. The microcavities are coupled to each other through light-guiding channels forming edges of the network. It has been shown that such a laser has a number of spectral features associated with the statistical properties of the network structure. Among them are the existence of a topologically protected Perron eigenvalue caused by the presence of a strong mean field at the node of maximum influence located in the central part of the network and the delocalization/localization of radiation modes depending on the probability of coupling between arbitrary microcavities. The results obtained in this work open prospects for the fabrication of new low-threshold laser sources.

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Shen, Feng, Lin Zhu, Jie Chen, and Zhaomiao Liu. "Water filling of microcavities." Biomicrofluidics 16, no. 4 (July 2022): 044108. http://dx.doi.org/10.1063/5.0104802.

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Cavity-filling is a common phenomenon whereby a fluid fills all or part of a cavity, displacing another immiscible fluid. In this study, we experimentally and theoretically investigate the effects of the cavity aspect ratio, channel width, tilting angle of the cavity leading wall, and inlet flow rate on the morphology of the water-air interface and the filling fraction of various cavities. Considering the influencing factors, we derive two formulas for predicting the filling fraction, and verify these expressions against experimental results. The findings of this study provide theoretical guidance for applications related to pressure-driven filling of cavity structures.

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Borri, Paola, Wolfgang Langbein, Ulrike Woggon, Axel Esser, Jacob R. Jensen, and J. rn M. Hvam. "Biexcitons in semiconductor microcavities." Semiconductor Science and Technology 18, no. 10 (September 3, 2003): S351—S360. http://dx.doi.org/10.1088/0268-1242/18/10/309.

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Loudon, R., and M. J. Adams. "Spontaneous emission in microcavities." IET Optoelectronics 1, no. 6 (December 1, 2007): 289–97. http://dx.doi.org/10.1049/iet-opt:20070043.

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Butt, Haider, Ali K. Yetisen, Rajib Ahmed, Seok Hyun Yun, and Qing Dai. "Carbon nanotube biconvex microcavities." Applied Physics Letters 106, no. 12 (March 23, 2015): 121108. http://dx.doi.org/10.1063/1.4916236.

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Perea, J. I., and C. Tejedor. "Artificial atoms in microcavities." Solid State Communications 135, no. 9-10 (September 2005): 538–43. http://dx.doi.org/10.1016/j.ssc.2005.04.043.

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Winchester, K., S. M. R. Spaargaren, and J. M. Dell. "Transferable silicon nitride microcavities." Microelectronics Journal 31, no. 7 (July 2000): 523–29. http://dx.doi.org/10.1016/s0026-2692(00)00025-2.

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Oudar, J. L., R. Kuszelewicz, B. Sfez, D. Pellat, and R. Azoulay. "Quantum well nonlinear microcavities." Superlattices and Microstructures 12, no. 1 (January 1992): 89–92. http://dx.doi.org/10.1016/0749-6036(92)90227-v.

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Burns, S. E., G. Denton, N. Tessler, M. A. Stevens, F. Cacialli, and R. H. Friend. "High finesse organic microcavities." Optical Materials 9, no. 1-4 (January 1998): 18–24. http://dx.doi.org/10.1016/s0925-3467(97)00075-x.

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Barland, S., M. Giudici, G. Tissoni, J. R. Tredicce, M. Brambilla, L. Lugiato, F. Prati, et al. "Solitons in semiconductor microcavities." Nature Photonics 6, no. 4 (March 30, 2012): 204. http://dx.doi.org/10.1038/nphoton.2012.50.

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Skryabin, D. V., D. N. Krizhanovskii, M. S. Skolnick, E. A. Cerda-Méndez, and R. Hartley. "Solitons in semiconductor microcavities." Nature Photonics 6, no. 4 (March 30, 2012): 204. http://dx.doi.org/10.1038/nphoton.2012.51.

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Stelitano, S., A. Ridolfo, G. De Luca, S. Savasta, and S. Patané. "Strong coupled organic microcavities." Journal of Physics: Conference Series 210 (February 1, 2010): 012022. http://dx.doi.org/10.1088/1742-6596/210/1/012022.

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Hendrickson, Scott M., Todd B. Pittman, and James D. Franson. "Microcavities Using Holey Fibers." Journal of Lightwave Technology 25, no. 10 (October 2007): 3068–71. http://dx.doi.org/10.1109/jlt.2007.905223.

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van Veen, A., R. A. Hakvoort, H. Schut, and P. E. Mijnarends. "Microcavities in Semiconductor Materials." Le Journal de Physique IV 05, no. C1 (January 1995): C1–37—C1–47. http://dx.doi.org/10.1051/jp4:1995104.

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Serpengüzel, Ali. "Amorphous silicon nitride microcavities." Journal of the Optical Society of America B 18, no. 7 (July 1, 2001): 989. http://dx.doi.org/10.1364/josab.18.000989.

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Pustai, David M., Ahmed Sharkawy, Shouyuan Shi, and Dennis W. Prather. "Tunable photonic crystal microcavities." Applied Optics 41, no. 26 (September 10, 2002): 5574. http://dx.doi.org/10.1364/ao.41.005574.

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Slusher, R. E. "Optical processes in microcavities." Semiconductor Science and Technology 9, no. 11S (November 1, 1994): 2025–30. http://dx.doi.org/10.1088/0268-1242/9/11s/028.

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Flatae, Assegid Mengistu, Matteo Burresi, Hao Zeng, Sara Nocentini, Sarah Wiegele, Camilla Parmeggiani, Heinz Kalt, and Diederik Wiersma. "Optically controlled elastic microcavities." Light: Science & Applications 4, no. 4 (April 2015): e282-e282. http://dx.doi.org/10.1038/lsa.2015.55.

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Yamamoto, Yoshihiso, and Richart E. Slusher. "Optical Processes in Microcavities." Physics Today 46, no. 6 (June 1993): 66–73. http://dx.doi.org/10.1063/1.881356.

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Quattropani, Antonio, and Paolo Schwendimann. "Polariton squeezing in microcavities." physica status solidi (b) 242, no. 11 (September 2005): 2302–14. http://dx.doi.org/10.1002/pssb.200560963.

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Becker, H., T. D. Wilkinson, and R. H. Friend. "Resonance wavelength-tunable microcavities." Advanced Materials for Optics and Electronics 9, no. 1 (January 1999): 9–14. http://dx.doi.org/10.1002/(sici)1099-0712(199901/02)9:1<9::aid-amo361>3.0.co;2-p.

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Dasbach, G., T. Baars, M. Bayer, and A. Forchel. "Biexcitons in Semiconductor Microcavities." physica status solidi (b) 221, no. 1 (September 2000): 319–22. http://dx.doi.org/10.1002/1521-3951(200009)221:1<319::aid-pssb319>3.0.co;2-m.

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Deveaud, Benoit. "Special issue: Semiconductor Microcavities." physica status solidi (b) 242, no. 11 (September 2005): 2147. http://dx.doi.org/10.1002/pssb.200590018.

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Liu, Yue, Miao Liu, Jingyun Hu, Jiajun Li, and Xinping Zhang. "Mechanically Contacted Distributed-Feedback Optical Microcavity." Nanomaterials 12, no. 11 (May 31, 2022): 1883. http://dx.doi.org/10.3390/nano12111883.

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We report a construction of distributed-feedback (DFB) optical microcavities, which is realized through mechanical contact between a high-quality planar thin film of a polymeric semiconductor and a large-area homogeneous nanograting. Using poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3] thiadiazol-4,8-diyl)] (F8BT) as the active medium for the planar layer, we achieve strong amplified spontaneous emission from such a microcavity with a low threshold. This not only simplifies largely the fabrication techniques for DFB microcavities, but also avoids the unexpected chemical interactions during solution processing between the organic semiconductors and the nanograting materials. Furthermore, high-quality polymer thin films with high surface smoothness and high thickness homogeneity are employed without any modulations for constructing the microcavities. This also suggests new designs of microcavity light-emitting diodes, or even for realizing electrically pumped polymer lasers, simply by metallizing the dielectric nanogratings as the electrodes.

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47

Bruel, Michel. "The History, Physics, and Applications of the Smart-Cut® Process." MRS Bulletin 23, no. 12 (December 1998): 35–39. http://dx.doi.org/10.1557/s088376940002981x.

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In a silicon-on-insulator (SOI) structure, a thin layer of monocrystalline silicon rests on a dielectric layer—generally amorphous—itself on a silicon wafer. Because such a structure cannot be achieved by conventional methods, different ways had to be imagined to facilitate its construction.The basic physics phenomenon that led the author to invent the process generally known under the name of Smart-Cut® is blistering. Blistering (Figure 1), in addition to flaking and exfoliation, is a visible macroscopic effect that has been known for a long time and is induced by high-dose implantations of inert gas or hydrogen ions in materials. These macroscopic effects result from the cooperative result of the microscopic effects induced in depth by penetration of particles. The microscopic effects of hydrogen or rare-gas implantation such as creation of microcavities, microblisters, or microbubbles (close to the penetration depth Rp corresponding to the maximum concentration) have been known for a long time. These microcavities enhance propagation of intercavity fractures where their density (depending on statistical fluctuations) reaches a percolation threshold. This leads to formation of a local cluster where all the microcavities are joined by a fractured zone, resulting in a blister at the surface. The driving force of this mechanism is the gas pressure in the microcavities and the stresses in the layer.

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48

Verma, Chandra Prakash, Asokan Kandasami, D. Kanjilal, and Gaddam Vijaya Prakash. "Photonic cavity mode tuning in porous silicon-based microcavities by He⁺ and H⁺ ion irradiation." Journal of Applied Physics 131, no. 19 (May 21, 2022): 195703. http://dx.doi.org/10.1063/5.0087632.

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The present investigation reports the optical characteristics of the porous Si (PSi) based microcavities before and after energetic He+ and H+ ion irradiations. These PSi microcavities were fabricated by the galvanostatic electrochemical etching process and irradiated with 35 keV He+ and H+ ions with three different ion fluences: 1 × 1015, 5 × 1015, and 1 × 1016 ions/cm2. Significant color contrast is evident in the reflection images after ion irradiation. These reflection spectra of the optical microcavities are systematically investigated before and after ion irradiations. The dominant resonant cavity peak of the microcavity shows a notable shift of ∼28–48 and ∼17–26 nm toward the higher wavelength region with He+ and H+ ion irradiations at various ion fluences, respectively. The relative changes in the cavity wavelengths are about ∼5%–10% and ∼3%–5% for He+ and H+ ion irradiations, respectively. The redshift in the reflectance spectra is attributed to modification in the refractive index of microcavities induced by He+ and H+ ions. These experimental results compare well with the ion propagation and transfer matrix method simulations. The observed changes in the optical properties arise due to surface modification of the Si–Si and Si–O bonds and thereby refractive index modification of individual PSi layers of the microcavity. This study establishes that low-energetic ions produce broadly optically tunable and photonic structures suitable for optoelectronic applications.

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Xavier, Jolly, Serge Vincent, Fabian Meder, and Frank Vollmer. "Advances in optoplasmonic sensors – combining optical nano/microcavities and photonic crystals with plasmonic nanostructures and nanoparticles." Nanophotonics 7, no. 1 (January 1, 2018): 1–38. http://dx.doi.org/10.1515/nanoph-2017-0064.

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AbstractNanophotonic device building blocks, such as optical nano/microcavities and plasmonic nanostructures, lie at the forefront of sensing and spectrometry of trace biological and chemical substances. A new class of nanophotonic architecture has emerged by combining optically resonant dielectric nano/microcavities with plasmonically resonant metal nanostructures to enable detection at the nanoscale with extraordinary sensitivity. Initial demonstrations include single-molecule detection and even single-ion sensing. The coupled photonic-plasmonic resonator system promises a leap forward in the nanoscale analysis of physical, chemical, and biological entities. These optoplasmonic sensor structures could be the centrepiece of miniaturised analytical laboratories, on a chip, with detection capabilities that are beyond the current state of the art. In this paper, we review this burgeoning field of optoplasmonic biosensors. We first focus on the state of the art in nanoplasmonic sensor structures, high quality factor optical microcavities, and photonic crystals separately before proceeding to an outline of the most recent advances in hybrid sensor systems. We discuss the physics of this modality in brief and each of its underlying parts, then the prospects as well as challenges when integrating dielectric nano/microcavities with metal nanostructures. In Section 5, we hint to possible future applications of optoplasmonic sensing platforms which offer many degrees of freedom towards biomedical diagnostics at the level of single molecules.

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50

Kogut, Igor T., Victor I. Holota, Anatoly Druzhinin, and V. V. Dovhij. "The Device-Technological Simulation of Local 3D SOI-Structures." Journal of Nano Research 39 (February 2016): 228–34. http://dx.doi.org/10.4028/www.scientific.net/jnanor.39.228.

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This paper presents the device-technological simulation of local 3D SOI structures. These structures are created by use microcavities under surface of silicon wafer. Is shown that proposed microcavities could be use as a constructive material for CMOS transistor array on the bulk silicon and 3D SOI-CMOS transistor array, as well as the sensitive elements and their combinations. Such structures allow creation and monolithic integration the CMOS, SOI-CMOS circuits and sensitive elements for IC and SoC.

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Journal articles on the topic 'Microcavities'

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