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Journal articles on the topic 'Non-reciprocal devices'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Yang, Chek Pin, Paul A. Smith, Geoffrey Dolman, Timothy W. Button, and David Cruickshank. "Helical Ferrite Devices for Non-Reciprocal Applications." Ferroelectrics 387, no. 1 (2009): 197–203. http://dx.doi.org/10.1080/00150190902967113.

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2

Wolfe, Raymond. "Thin films for non-reciprocal magneto-optic devices." Thin Solid Films 216, no. 1 (1992): 184–88. http://dx.doi.org/10.1016/0040-6090(92)90892-f.

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3

Shoji, Yuya, and Tetsuya Mizumoto. "Magneto-optical non-reciprocal devices in silicon photonics." Science and Technology of Advanced Materials 15, no. 1 (2014): 014602. http://dx.doi.org/10.1088/1468-6996/15/1/014602.

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4

Parkinson, G., and D. K. Paul. "MMIC implementation of non-reciprocal couplers using pHEMT devices." Electronics Letters 40, no. 13 (2004): 810. http://dx.doi.org/10.1049/el:20040541.

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Kopnov, G., and A. Gerber. "Non-reciprocal magnetoresistance, directional inhomogeneity and mixed symmetry Hall devices." Applied Physics Letters 119, no. 10 (2021): 102405. http://dx.doi.org/10.1063/5.0065445.

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6

Fleury, Romain, Dimitrios Sounas, and Andrea Alu. "Non-reciprocal acoustic devices based on spatio-temporal angular-momentum modulation." Journal of the Acoustical Society of America 136, no. 4 (2014): 2281. http://dx.doi.org/10.1121/1.4900246.

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7

El-Ganainy, R., A. Eisfeld, Miguel Levy, and D. N. Christodoulides. "On-chip non-reciprocal optical devices based on quantum inspired photonic lattices." Applied Physics Letters 103, no. 16 (2013): 161105. http://dx.doi.org/10.1063/1.4824895.

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8

Tao, Ke Yu, Qiong Wang, and Jian Pang Zhai. "Running around a Gyrotropic Material." Advanced Materials Research 479-481 (February 2012): 611–14. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.611.

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Non-reciprocal component is very important for nanophotonic circuit. In this article, we demonstrate that a kind of unidirectional surface state can exist in various interfaces between magnetized gyrotropic material and other medium. Since this type of modes is not limited by bandgap as those in photonic crystals, it provides possibilities for making broad-spectrum non-reciprocal devices.

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Pierce, Allan D. "Reciprocity theorems and perception of non-reciprocal behavior in vibrating systems, imetamaterials, acoustic devices, and electroacoustic devices." Journal of the Acoustical Society of America 143, no. 3 (2018): 1946. http://dx.doi.org/10.1121/1.5036376.

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10

Ergin, Rabia, Ann Senghas, Ray Jackendoff, and Lila Gleitman. "Structural cues for symmetry, asymmetry, and non-symmetry in Central Taurus Sign Language." Special Issue in Memory of Irit Meir 23, no. 1-2 (2020): 171–207. http://dx.doi.org/10.1075/sll.00048.erg.

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Abstract We investigate how predicates expressing symmetry, asymmetry and non-symmetry are encoded in a newly emerging sign language, Central Taurus Sign Language (CTSL). We find that predicates involving symmetry (i.e., reciprocal and symmetrical actions) differ from those involving asymmetry (i.e., transitive) in their use of the morphological devices investigated here: body segmentation, mirror-image articulators and double perspective. Symmetrical predicates also differ from non-symmetrical ones (i.e., intransitive) in their use of mirror-image configuration. Furthermore, reciprocal action

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Zappelli, Leonardo. "ANALYSIS OF ``FALSE NON RECIPROCITY'' IN 2-PORT VNA MEASUREMENTS OF RECIPROCAL DEVICES." Progress In Electromagnetics Research M 90 (2020): 1–8. http://dx.doi.org/10.2528/pierm19110903.

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12

Tamagnone, Michele, Arya Fallahi, Juan R. Mosig, and Julien Perruisseau-Carrier. "Fundamental limits and near-optimal design of graphene modulators and non-reciprocal devices." Nature Photonics 8, no. 7 (2014): 556–63. http://dx.doi.org/10.1038/nphoton.2014.109.

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13

Fal, T. J., and R. E. Camley. "Non-reciprocal devices using attenuated total reflection and thin film magnetic layered structures." Journal of Applied Physics 110, no. 5 (2011): 053912. http://dx.doi.org/10.1063/1.3636365.

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14

Li, Peng, Chenchen Shu, and Jiao Feng. "A Reciprocal-Selection-Based ‘Win–Win’ Overlay Spectrum-Sharing Scheme for Device-to-Device-Enabled Cellular Network." Algorithms 11, no. 11 (2018): 179. http://dx.doi.org/10.3390/a11110179.

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This paper proposes a reciprocal-selection-based ‘Win–Win’ overlay spectrum-sharing scheme for device-to-Device-enabled cellular networks to address the resource sharing between Device-to-Device devices and the cellular users by using an overlay approach. Based on the proposed scheme, the cell edge users intend to lease part of its spectrum resource to Device-to-Device transmission pairs. However, the Device-to-Device users have to provide the cooperative transmission assistance for the cell edge users in order to improve the Quality of Service of the uplink transmission from the cell edge use

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15

Bi, Lei, Juejun Hu, Peng Jiang, et al. "Magneto-Optical Thin Films for On-Chip Monolithic Integration of Non-Reciprocal Photonic Devices." Materials 6, no. 11 (2013): 5094–117. http://dx.doi.org/10.3390/ma6115094.

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16

Li, Zhen-Ni, Yi-Ze Wang, and Yue-Sheng Wang. "Tunable mechanical diode of nonlinear elastic metamaterials induced by imperfect interface." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 477, no. 2245 (2021): 20200357. http://dx.doi.org/10.1098/rspa.2020.0357.

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In this investigation, the non-reciprocal transmission in a nonlinear elastic metamaterial with imperfect interfaces is studied. Based on the Bloch theorem and stiffness matrix method, the band gaps and transmission coefficients with imperfect interfaces are obtained for the fundamental and double frequency cases. The interfacial influences on the transmission behaviour are discussed for both the nonlinear phononic crystal and elastic metamaterial. Numerical results for the imperfect interface structure are compared with those for the perfect one. Furthermore, experiments are performed to supp

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17

Binsley, Jacob L., Elizabeth L. Martin, Thomas O. Myers, Stefano Pagliara, and Feodor Y. Ogrin. "Elasto-Magnetic Pumps Integrated within Microfluidic Devices." Engineering Proceedings 4, no. 1 (2021): 48. http://dx.doi.org/10.3390/micromachines2021-09590.

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Many lab-on-a-chip devices require a connection to an external pumping system in order to perform their function. While this is not problematic in typical laboratory environments, it is not always practical when applied to point-of-care testing, which is best utilized outside of the laboratory. Therefore, there has been a large amount of ongoing research into producing integrated microfluidic components capable of generating effective fluid flow from on-board the device. This research aims to introduce a system that can produce practical flow rates, and be easily fabricated and actuated using

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18

SUN, NIAN X., and GOPALAN SRINIVASAN. "VOLTAGE CONTROL OF MAGNETISM IN MULTIFERROIC HETEROSTRUCTURES AND DEVICES." SPIN 02, no. 03 (2012): 1240004. http://dx.doi.org/10.1142/s2010324712400048.

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Multiferroic materials and devices have attracted intensified recent interests due to the demonstrated strong magnetoelectric (ME) coupling in new multiferroic materials and devices with unique functionalities and superior performance characteristics. Strong ME coupling has been demonstrated in a variety of multiferroic heterostructures, including bulk magnetic on ferro/piezoelectric multiferroic heterostructures, magnetic film on ferro/piezoelectric slab multiferroic heterostructures, thin film multiferroic heterostructures, etc. Different multiferroic devices have been demonstrated, which in

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19

Siddiqui, Aleem M., Lisa P. Hackett, Daniel Dominguez, et al. "Comparison of amplification via the acousto-electric effect of Rayleigh and Leaky-SAW modes in a monolithic surface InP:InGaAs/lithium niobate heterostructure." Ferroelectrics 557, no. 1 (2020): 58–65. http://dx.doi.org/10.1080/00150193.2020.1713363.

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This paper demonstrates a monolithic surface acoustic wave amplifier fabricated by state-of-the-art heterogenous integration of a III-V InGaAs-based epitaxial material stack and LiNbO3. We compare amplification of Raleigh-SAW and leaky-SAW modes on a on Y-cut, X-propagating delay line amplifier. Due to the superior properties of the materials employed, we observe a net terminal gain of 3dB for an LSAW overtone mode This platform enables further advances in active and non-reciprocal piezoelectric acoustic devices.

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20

Roig-Maimó, Maria Francesca, Ian Scott MacKenzie, Cristina Manresa-Yee, and Javier Varona Gómez. "Fitts’ Law: On Calculating Throughput and Non-ISO Tasks." Revista Colombiana de Computación 19, no. 1 (2018): 7–28. http://dx.doi.org/10.29375/25392115.3226.

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We used a target-selection task to evaluate head-tracking as an input method for mobile devices. First, the method of calculating Fitts’ throughput is described by means of a raw data detailed example. Then, the method of calculating throughput is discussed for non-ISO tasks, since the procedure targets were randomly positioned from trial to trial. Due to a non-constant amplitude within each sequence of trials, throughput was calculated using two methods of data aggregation: the first one, by sequence of trials using the mean amplitude, and the second one, by common A-W conditions. For each da

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21

Lu, Chengliang, Menghao Wu, Lin Lin, and Jun-Ming Liu. "Single-phase multiferroics: new materials, phenomena, and physics." National Science Review 6, no. 4 (2019): 653–68. http://dx.doi.org/10.1093/nsr/nwz091.

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Abstract Multiferroics, where multiple ferroic orders coexist and are intimately coupled, promise novel applications in conceptually new devices on one hand, and on the other hand provide fascinating physics that is distinctly different from the physics of high-TC superconductors and colossal magnetoresistance manganites. In this mini-review, we highlight the recent progress of single-phase multiferroics in the exploration of new materials, efficient roadmaps for functionality enhancement, new phenomena beyond magnetoelectric coupling, and underlying novel physics. In the meantime, a slightly

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22

Kryukov, Andrey, Aleksandr Cherepanov, and Irina Lyubchenko. "Integrated use of Smart Grid technologies in railway traction networks." Proceedings of Irkutsk State Technical University 24, no. 5 (2020): 1041–52. http://dx.doi.org/10.21285/1814-3520-2020-5-1041-1052.

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The purpose of the paper is to develop a methodology for modeling railway power supply systems equipped with a set of devices implemented on the base of smart grid technologies. The research is carried out using the Fazonord software package designed for modeling the modes of railway power supply systems in phase coordinates. The calculation model is implemented for the power supply system of a two-track section with five traction substations. The results obtained show that reliable and high-quality power supply of train traction and non-traction consumers can be ensured on the basis of the in

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23

Ijzerman, M. J., G. Baardman, H. J. Hermens, P. H. Veltink, H. B. K. Boom, and G. Zilvold. "The influence of the reciprocal cable linkage in the advanced reciprocating gait orthosis on paraplegic gait performance." Prosthetics and Orthotics International 21, no. 1 (1997): 52–61. http://dx.doi.org/10.3109/03093649709164530.

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A wide variety of mechanical orthoses is available to provide ambulation to paraplegic patients. Evaluation of energy cost during walking in each of these devices has been acknowledged as an important topic in this field of research. In order to investigate the benefits of a ballistic swing on gait performance in the Advanced Reciprocating Gait Orthosis (ARGO) a study was conducted in which the ARGO was compared with an orthosis with freely swinging legs. This Non Reciprocally linked Orthosis (NRO) was obtained by removing the reciprocal linkage in the subjects' own ARGOs. Subsequently, flexio

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24

Staudenmann, J. L., R. D. Horning, and R. D. Knox. "Buerger precession camera and overall characterization of thin films and flat-plate crystals." Journal of Applied Crystallography 20, no. 3 (1987): 210–21. http://dx.doi.org/10.1107/s0021889887086813.

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A fast simple and non-destructive method is described to provide qualitative structural information for flat-plate crystals and epitaxically grown films. The technique, based upon the Buerger precession camera, produces an easy-to-interpret photograph of the reciprocal space of all the components at once: substrate, film or buffer layer, and/or superlattice. A wide variety of technologically important examples are used to illustrate the technique: a mixture of CdTe phases on (001) Si, an aluminium layer on a (001) Si substrate, (001) Ge epitaxic layers on (001) Si substrates, three combination

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25

Dong, Shaohua, Qing Zhang, Guangtao Cao, et al. "On-chip trans-dimensional plasmonic router." Nanophotonics 9, no. 10 (2020): 3357–65. http://dx.doi.org/10.1515/nanoph-2020-0078.

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AbstractPlasmons, as emerging optical diffraction-unlimited information carriers, promise the high-capacity, high-speed, and integrated photonic chips. The on-chip precise manipulations of plasmon in an arbitrary platform, whether two-dimensional (2D) or one-dimensional (1D), appears demanding but non-trivial. Here, we proposed a meta-wall, consisting of specifically designed meta-atoms, that allows the high-efficiency transformation of propagating plasmon polaritons from 2D platforms to 1D plasmonic waveguides, forming the trans-dimensional plasmonic routers. The mechanism to compensate the m

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26

Berg, Kari Helene, Daniel Straume, and Leiv Sigve Håvarstein. "The function of the transmembrane and cytoplasmic domains of pneumococcal penicillin-binding proteins 2x and 2b extends beyond that of simple anchoring devices." Microbiology 160, no. 8 (2014): 1585–98. http://dx.doi.org/10.1099/mic.0.078535-0.

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The biosynthesis of cell-wall peptidoglycan is a complex process that involves six different penicillin-binding proteins (PBPs) in Streptococcus pneumoniae. Two of these, PBP2x and PBP2b, are monofunctional transpeptidases that catalyse the formation of peptide cross-links between adjacent glycan strands. Both of them are bitopic membrane proteins with a small cytoplasmic and a large extracellular domain. PBP2x and PBP2b are essential for septal and peripheral peptidoglycan synthesis, respectively. Although several studies have investigated the properties of their extracellular catalytic domai

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27

Qassym, Lilia, Gérard Cibien, Richard Lebourgeois, Gilles Martin, and Dorothée Colson. "New ferrimagnetic garnets for LTCC-technology circulators." International Symposium on Microelectronics 2016, no. 1 (2016): 000586–90. http://dx.doi.org/10.4071/isom-2016-thp24.

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Abstract Yttrium Iron Garnet based ferrites are used in non-reciprocal devices like microwave circulators and isolators. The low dielectric and magnetic losses of those materials provide the required properties. The main drawbacks of circulators are their size and cost, due to complex mechanical assembling of the different materials. In order to simplify this complex manufacturing process, a possible solution would be to adapt the different materials to a common LTCC (Low Temperature Co-fired Ceramics) process: the circulators would be produced with an additive multilayer process. We showed th

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28

Choudhary, A., T. Renganathan, and S. Pushpavanam. "Inertial migration of an electrophoretic rigid sphere in a two-dimensional Poiseuille flow." Journal of Fluid Mechanics 874 (July 12, 2019): 856–90. http://dx.doi.org/10.1017/jfm.2019.479.

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There has been a recent interest in integrating external fields with inertial microfluidic devices to tune particle focusing. In this work, we analyse the inertial migration of an electrophoretic particle in a two-dimensional Poiseuille flow with an electric field applied parallel to the walls. For a thin electrical double layer, the particle exhibits a slip-driven electrokinetic motion along the direction of the applied electric field, which causes the particle to lead or lag the flow (depending on its surface charge). The fluid disturbance caused by this slip-driven motion is characterized b

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Song, M. H., B. Park, S. Nishimura, et al. "Electrotunable Non-reciprocal Laser Emission from a Liquid-Crystal Photonic Device." Advanced Functional Materials 16, no. 14 (2006): 1793–98. http://dx.doi.org/10.1002/adfm.200600107.

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30

Saker, Khadidja, Touraya Bouchemat, Mahieddine Lahoubi, Mohamed Bouchemat, and Shengli Pu. "Design of non-reciprocal device based on magnetic photonic crystal fiber with enhanced birefringence." Microelectronics Journal 100 (June 2020): 104786. http://dx.doi.org/10.1016/j.mejo.2020.104786.

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ASADA, Shota, Kenji TSURUTA, and Yuhei IWASAKI. "Effect of matching layer for non-reciprocal lamb wave device using hetero-phononic structure." Proceedings of The Computational Mechanics Conference 2018.31 (2018): 161. http://dx.doi.org/10.1299/jsmecmd.2018.31.161.

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32

Bokhari, Ahmad H., Abbas Mousavi, Bin Niu, and Eddie Wadbro. "Topology optimization of an acoustic diode?" Structural and Multidisciplinary Optimization 63, no. 6 (2021): 2739–49. http://dx.doi.org/10.1007/s00158-020-02832-9.

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AbstractBy using topology optimization, we consider the problem of designing a passive acoustic device that allows for one-way flow of sound waves; such a device is often colloquially referred to as an acoustic diode. The Helmholtz equation is used to model the time harmonic linear wave propagation together with a Dirichlet-to-Neumann (DtN) type boundary condition, and the finite element method is used for discretization. The objective of this study is to maximize the wave propagation in one direction (from left to right) and minimize the wave propagation in the reverse direction (from right t

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33

Novosyadlyj, S. P., and I. I. Abramova. "Features of the Signal System of Automated Design of Frequency Converters Systems - Ultrahigh Frequencies." Фізика і хімія твердого тіла 18, no. 4 (2017): 472–83. http://dx.doi.org/10.15330/pcss.18.4.483.

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The article analyzes and outlines the modern principles of the theory of the signaling system of automated design with frequency transformations on a non-reciprocal electronic device - the transistor of ultrahigh frequencies. In addition, schematic variants of frequency converters on-field and bipolar transistors, Schottky diodes (varicaps) are considered; the signal theory of transistor and diode frequency converters is described: resistive and capacitive. Schematic performances of frequency converters represent variants of the signaling system of automated designing at ultrahigh frequencies.

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34

Demirer, Figen Ece, Chris van den Bomen, Reinoud Lavrijsen, Jos J. G. M. van der Tol, and Bert Koopmans. "Design and Modelling of a Novel Integrated Photonic Device for Nano-Scale Magnetic Memory Reading." Applied Sciences 10, no. 22 (2020): 8267. http://dx.doi.org/10.3390/app10228267.

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Design and simulations of an integrated photonic device that can optically detect the magnetization direction of its ultra-thin (∼12 nm) metal cladding, thus ‘reading’ the stored magnetic memory, are presented. The device is an unbalanced Mach Zehnder Interferometer (MZI) based on InP Membrane on Silicon (IMOS) platform. The MZI consists of a ferromagnetic thin-film cladding and a delay line in one branch, and a polarization converter in the other. It quantitatively measures the non-reciprocal phase shift caused by the Magneto-Optic Kerr Effect in the guided mode which depends on the memory bi

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Geandier, G., D. Faurie, P. O. Renault, D. Thiaudière, and E. Le Bourhis. "In situmonitoring of X-ray strain pole figures of a biaxially deformed ultra-thin film on a flexible substrate." Journal of Applied Crystallography 47, no. 1 (2014): 181–87. http://dx.doi.org/10.1107/s1600576713030720.

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X-ray strain pole figures (SPFs) have been capturedin situduring biaxial deformation of a gold ultra-thin film (thickness = 40 nm) deposited on a polymer substrate. An area detector was used to extract one line in the reciprocal space while the strained sample was rotated azimuthally step by step to produce the SPF. Such SPFs have been obtained for a textured anisotropic ultra-thin film under controlled non-equibiaxial loading using the SOLEIL synchrotron DIFFABS tensile device. The experimental setup allows the pole figure measurements of {111} and {200} reflections to be performed simultaneo

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36

Crisp, Ross. "Kafka’s “categorical imperative” and his sense of “being and non-being”." Janus Head 15, no. 2 (2016): 167–83. http://dx.doi.org/10.5840/jh201615232.

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In this article, I begin with Kant’s notion of a “categorical imperative” as a framework from which to discuss the ontology of Franz Kafka’s writing. Since Kant’s moral law is a device for reflecting on our responses to challenging circumstances rather than one that tells us what we should always do in every situation, I draw inferences concerning Kafka’s own descriptions of his sense of being a writer in opposing phenomenal and spiritual worlds. Since Kafka cannot be understood exclusively from a Kantian perspective of autonomous will, I discuss Kafka’s experiencing in terms of the reciprocal

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37

Mayer, G., N. Blanchemain, C. Dupas-Bruzek, et al. "Physico-Chemical Modifications and Biological Improvements of Biomedical PET as a Consequence of Excimer LASER Irradiation." Key Engineering Materials 288-289 (June 2005): 347–50. http://dx.doi.org/10.4028/www.scientific.net/kem.288-289.347.

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LASER Excimer irradiation can modify surface properties for biocompatibility improvement of a medical device. The PETs from 3 different origins were used in this study. The samples have been irradiated by excimer LASER with 10 different energies. The surface profile, the surface energy and the materials crystallinity have been assessed. Biological characterizations were made with human embryonic epithelial cells L132: proliferation, vitality, viability, adhesion with the p-NPP, and morphology. - The profile measurements allowed to establish the ablation threshold, which was 36 mJ/cm². The surf

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Loos, Sarah A. M., Simon Hermann, and Sabine H. L. Klapp. "Medium Entropy Reduction and Instability in Stochastic Systems with Distributed Delay." Entropy 23, no. 6 (2021): 696. http://dx.doi.org/10.3390/e23060696.

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Many natural and artificial systems are subject to some sort of delay, which can be in the form of a single discrete delay or distributed over a range of times. Here, we discuss the impact of this distribution on (thermo-)dynamical properties of time-delayed stochastic systems. To this end, we study a simple classical model with white and colored noise, and focus on the class of Gamma-distributed delays which includes a variety of distinct delay distributions typical for feedback experiments and biological systems. A physical application is a colloid subject to time-delayed feedback control, w

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Suturin, S. M., V. V. Fedorov, A. M. Korovin, N. S. Sokolov, A. V. Nashchekin, and M. Tabuchi. "Epitaxial Ni nanoparticles on CaF2(001), (110) and (111) surfaces studied by three-dimensional RHEED, GIXD and GISAXS reciprocal-space mapping techniques." Journal of Applied Crystallography 50, no. 3 (2017): 830–39. http://dx.doi.org/10.1107/s160057671700512x.

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The development of growth techniques aimed at the fabrication of nanoscale heterostructures with layers of ferroic 3dmetals on semiconductor substrates is very important for their potential usage in magnetic media recording applications. A structural study is presented of single-crystal nickel island ensembles grown epitaxially on top of CaF2/Si insulator-on-semiconductor heteroepitaxial substrates with (111), (110) and (001) fluorite surface orientations. The CaF2buffer layer in the studied multilayer system prevents the formation of nickel silicide, guides the nucleation of nickel islands an

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40

Munné, Santiago, Steven T. Nakajima, Sam Najmabadi, et al. "First PGT-A using human in vivo blastocysts recovered by uterine lavage: comparison with matched IVF embryo controls†." Human Reproduction 35, no. 1 (2019): 70–80. http://dx.doi.org/10.1093/humrep/dez242.

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Abstract STUDY QUESTION After controlled ovarian stimulation (COS) and IUI, is it clinically feasible to recover in vivo conceived and matured human blastocysts by uterine lavage from fertile women for preimplantation genetic testing for aneuploidy (PGT-A) and compare their PGT-A and Gardner scale morphology scores with paired blastocysts from IVF control cycles? SUMMARY ANSWER In a consecutive series of 134 COS cycles using gonadotrophin stimulation followed by IUI, uterine lavage recovered 136 embryos in 42% (56/134) of study cycles, with comparable in vivo and in vitro euploidy rates but be

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41

"Non-Reciprocal Optical Phenomena and Photonic Devices." IEEE Photonics Journal 5, no. 5 (2013): 1. http://dx.doi.org/10.1109/jphot.2013.2281242.

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42

Sychev, A. N., and N. D. Malyutin. "Modern devices, antennas and reflectors with nonreciprocal properties (review)." Journal of Radio Electronics 2020, no. 11 (2020). http://dx.doi.org/10.30898/1684-1719.2020.11.2.

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The review deals with microwave antennas, devices (including reflectors), materials and media with nonreciprocal properties, which, due to their uniqueness and promising application, have become the topic of a large number of scientific studies and publications. It is noted that amplitude nonreciprocity can be realized not only with the help of magnetized ferrites and semiconductor amplifiers, but also based on parametric and nonlinear structures using space-time modulation. Therefore, polarization nonreciprocity can also be achieved on magnet-free components, including varactors, and other pa

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McKnight, Stephen W., Steven A. Oliver, Hoton How, and Carmine Vittoria. "Planar Ferrite Materials for Millimeter-Wave Applications." MRS Proceedings 631 (2000). http://dx.doi.org/10.1557/proc-631-aa2.4.

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ABSTRACTTransferred-film technology provides a path to the integration of self-biased hexaferrite film devices into MMIC circuits. While progress is being made on the growth of thick oriented films of barium hexaferrite doped with aluminum and scandium by pulsed laser deposition or liquidphase epitaxy, we have demonstrated prototype devices using available yttrium-iron-garnet films and thinned bulk hexaferrites. Insertion losses less than 2dB and isolation greater than 20dB have been demonstrated, and theoretical modeling indicates that insertion losses less than 0.5 dB are accessible with opt

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Huang, Jiahui, and Xiaoming Zhou. "Non-Reciprocal Metamaterials With Simultaneously Time-Varying Stiffness and Mass." Journal of Applied Mechanics 87, no. 7 (2020). http://dx.doi.org/10.1115/1.4046844.

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Abstract A modulated metamaterial that exhibits both time-periodic stiffness and mass simultaneously is presented. The metamaterial element includes a primary body that undergoes infinitesimal motion, and is connected to a dynamic-mechanism structure, involving a rotational body, and spring with a large-scale motion, which is designed to produce a time-modulated linear momentum and elastic constraint for the primary body. The non-reciprocal wave propagation is then investigated in a space–time lattice metamaterial that is constructed by coupling doubly time-modulated elements with linear sprin

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Furdyna, J. K. "Diluted Magnetic Semiconductor Thin Films and Multilayers." MRS Proceedings 517 (January 1998). http://dx.doi.org/10.1557/proc-517-613.

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AbstractWe review the properties of diluted magnetic semiconductor (DMS) thin films and multilayers, with special attention to their usefulness in magneto-optical device applications. We begin with the most widely studied DMS family, i.e., alloys of II-VI semiconductors involving Mn ions. Prospects and challenges are discussed for achieving II1-xMnxVI-based non-reciprocal devices; and for devices operating in the far infrared. We also consider the unique advantages which DMSs offer for probing the properties of semiconductor heterostructures. We then discuss ferromagnetic DMSs, including those

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Holmes, Barry M., David C. Hutchings, and Josef J. Bregenzer. "Experiments Towards the Realisation of a Monolithically-Integrated Optical Isolator Incorporating Quasi-Phase Matched Magneto-Optical Effects." MRS Proceedings 834 (2004). http://dx.doi.org/10.1557/proc-834-j4.4.

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ABSTRACTExperiments towards the realisation of the necessary components for future integrated waveguide optical isolators have been conducted. The design, fabrication and characterisation of GaAs/AlGaAs reciprocal mode converters, realised through the use of three novel approaches, is reported. These devices have been tested at λ=0.9m and 1.3m, producing TE-TM conversion efficiencies up to 70%. Initial investigations into the inclusion of magneto optic materials with III-V semiconductor structures for non-reciprocal mode conversion are also discussed.

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Galda, Alexey, and Valerii M. Vinokur. "Exceptional points in classical spin dynamics." Scientific Reports 9, no. 1 (2019). http://dx.doi.org/10.1038/s41598-019-53455-0.

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AbstractNon-conservative physical systems admit a special kind of spectral degeneracy, known as exceptional point (EP), at which eigenvalues and eigenvectors of the corresponding non-Hermitian Hamiltonian coalesce. Dynamical parametric encircling of the EP can lead to non-adiabatic evolution associated with a state flip, a sharp transition between the resonant modes. Physical consequences of the dynamical encircling of EPs in open dissipative systems have been explored in optics and photonics. Building on the recent progress in understanding the parity-time ($${\mathscr{P}}{\mathscr{T}}$$PT)-s

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Hu, Xin-Xin, Zhu-Bo Wang, Pengfei Zhang, et al. "Noiseless photonic non-reciprocity via optically-induced magnetization." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-22597-z.

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AbstractThe realization of optical non-reciprocity is crucial for many applications, and also of fundamental importance for manipulating and protecting the photons with desired time-reversal symmetry. Recently, various new mechanisms of magnetic-free non-reciprocity have been proposed and implemented, avoiding the limitation of the strong magnetic field imposed by the Faraday effect. However, due to the difficulties in separating the signal photons from the drive laser and the noise photons induced by the drive laser, these devices exhibit limited isolation performances and their quantum noise

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Palagin, Alexander, Miroslav Semotiuk, Yaroslav Vizor, and Eugeniy Chichirin. "SOME ASPECTS OF INCREASING THE PROCESSING POWER OF THE DIGITAL SIGNAL PROCESSORS." International Journal of Computing, August 1, 2014, 87–95. http://dx.doi.org/10.47839/ijc.8.3.689.

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An analysis of the non-linear equation solving methods used by the arithmetic units of the computing devices was conducted in order to facilitate creation of the arithmetic units which would be optimal in terms of processing power and hardware overhead. A method and algorithm of a hardware implementation of computing the particular and the reciprocal in the digital signal processors at higher speed and minimal hardware overhead.

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Liu, Kai, Wei Luo, Junyi Ji, Paolo Barone, Silvia Picozzi, and Hongjun Xiang. "Band splitting with vanishing spin polarizations in noncentrosymmetric crystals." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-13197-z.

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Abstract The Dresselhaus and Rashba effects are well-known phenomena in solid-state physics, in which spin–orbit coupling splits spin-up and spin-down energy bands of nonmagnetic non-centrosymmetric crystals. Here, we discuss a phenomenon we dub band splitting with vanishing spin polarizations (BSVSP), in which, as usual, spin-orbit coupling splits the energy bands in nonmagnetic non-centrosymmetric systems. Surprisingly, however, both split bands show no net spin polarization along certain high-symmetry lines in the Brillouin zone. In order to rationalize this phenomenon, we propose a classif

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