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Conference on Lasers and Electro-Optics (CLEO)

作者： Andrey Baydin Manukumara Manjappa Sobhan Subhra Mishra Hongjing Xu Fuyang Tay Dasom Kim Felix G. G. Hernandez Paulo H. O. Rappl Eduardo Abramof Ranjan Singh Junichiro Kono Department of Electrical and Computer Engineering Rice University Houston Texas USA Smalley-Curl Institute Rice University Houston Texas USA Instrumentation and Applied Physics Department Indian Institute of Science Bangalore India Center for Disruptive Photonic Technologies The Photonics Institute Nanyang Technological University Singapore Department of Physics and Astronomy Rice University Houston Texas USA Applied Physics Graduate Program Smalley-Curl Institute Rice University Houston Texas USA Instituto de Física Universidade de São Paulo São Paulo SP Brazil Laboratório Associado de Sensores e Materiais Instituto Nacional de Pesquisas Espaciais São José dos Campos SP Brazil Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore Department of Material Science and NanoEngineering Rice University Houston Texas USA

We have investigated the resonant coupling of photons with TO phonons in lead telluride in small-mode-volume terahertz cavities, observing a giant vacuum Rabi splitting on the order of the bare cavity–phonon frequency.

ISBN: (纸本)9781957171258

关键词： Electric fields Numerical simulation Optical constants Photons Physical vapor deposition Terahertz spectroscopy

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Ubiquitous Flat Bands in a Cr-based Kagome Superconductor

arXiv

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arXiv 2024年

作者： Guo, Yucheng Wang, Zehao Xie, Fang Huang, Yuefei Gao, Bin Oh, Ji Seop Wu, Han Liu, Zhaoyu Ren, Zheng Fang, Yuan Biswas, Ananya Zhang, Yichen Yue, Ziqin Hu, Cheng Jozwiak, Chris Bostwick, Aaron Rotenberg, Eli Hashimoto, Makoto Lu, Donghui Kono, Junichiro Chu, Jiun-Haw Yakobson, Boris I. Birgeneau, Robert J. Si, Qimiao Dai, Pengcheng Yi, Ming Department of Physics and Astronomy Rice University HoustonTX77005 United States Advanced Light Source Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Department of Materials Science and NanoEngineering Rice University HoustonTX77005 United States Department of Physics University of California BerkeleyCA94720 United States Department of Physics University of Washington Washington98105 United States Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo ParkCA94025 United States Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Smalley-Curl Institute Rice University HoustonTX77005 United States Department of Materials Science and NanoEngineering Rice University HoustonTX77005 United States

In the quest for novel quantum states driven by topology and correlation, kagome lattice materials have garnered significant interest due to their distinctive electronic band structures, featuring flat bands (FBs) arising from the quantum destructive interference of the electronic wave function. The tuning of the FBs to the chemical potential would lead to the possibility of liberating electronic instabilities that lead to emergent electronic orders. Despite extensive studies, direct evidence of FBs tuned to the chemical potential and their participation in emergent electronic orders have been lacking in bulk quantum materials. Here using a combination of Angle-Resolved Photoemission Spectroscopy (ARPES) and Density Functional Theory (DFT), we reveal that the low-energy electronic structure of the recently discovered Cr-based kagome metal superconductor CsCr3Sb5 is dominated by a pervasive FB in close proximity to, and below the Fermi level. A comparative analysis with orbital-projected DFT and polarization dependence measurement uncovers that an orbital-selective renormalization mechanism is needed to reconcile the discrepancy with the DFT calculations, which predict the FB to appear 200 meV above the Fermi level. Furthermore, we observe the FB to shift away from the Fermi level by 20 meV in the low-temperature density wave-ordered phase, highlighting the role of the FB in the emergent electronic order. Our results reveal CsCr3Sb5 to stand out as a promising platform for further exploration into the effects of FBs near the Fermi level on kagome lattices, and their role in emergent orders in bulk quantum materials. © 2024, CC BY.

关键词： Density functional theory

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Quantifying myelin in brain tissue using color spatial light interference microscopy (cSLIM)

arXiv

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arXiv 2020年

作者： Fanous, Michael Caputo, Megan P. Lee, Young Jae Rund, Laurie A. Best-Popescu, Catherine Kandel, Mikhail E. Johnson, Rodney W. Das, Tapas Kuchan, Matthew J. Popescu, Gabriel Quantitative Light Imaging Laboratory Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign UrbanaIL61801 United States Department of Bioengineering University of Illinois at Urbana-Champaign 306 N. Wright Street UrbanaIL61801 United States Division of Nutritional Sciences University of Illinois Urbana-ChampaignIL61801 United States Neuroscience Program University of Illinois at Urbana-Champaign UrbanaIL61801 United States Laboratory of Integrative Immunology & Behavior Department of Animal Sciences University of Illinois Urbana-ChampaignIL61801 United States Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign 306 N. Wright Street UrbanaIL61801 United States Abbott Nutrition Discovery Research ColumbusOH43219 United States Abbott Nutrition Strategic Research 3300 Stelzer Road ColumbusOH United States

Deficient myelination of the brain is associated with neurodevelopmental delays, particularly in high-risk infants, such as those born small in relation to their gestational age (SGA). New methods are needed to further study this condition. Here, we employ Color Spatial Light Interference Microscopy (cSLIM), which uses a brightfield objective and RGB camera to generate pathlength-maps with nanoscale sensitivity in conjunction with a regular brightfield image. Using tissue sections stained with Luxol Fast Blue, the myelin structures were segmented from a brightfield image. Using a binary mask, those portions were quantitatively analyzed in the corresponding phase maps. We first used the CLARITY method to remove tissue lipids and validate the sensitivity of cSLIM to lipid content. We then applied cSLIM to brain histology slices. These specimens are from a previous MRI study, which demonstrated that appropriate for gestational age (AGA) piglets have increased internal capsule myelination (ICM) compared to small for gestational age (SGA) piglets and that a hydrolyzed fat diet improved ICM in both. The identity of samples was blinded until after statistical analyses. Copyright © 2020, The Authors. All rights reserved.

关键词： Brain

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Polarization entanglement enabled by orthogonally stacked van der Waals NbOCl2 crystals

arXiv

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arXiv 2024年

作者： Guo, Qiangbing Wu, Yun-Kun Zhang, Di Zhang, Qiuhong Guo, Guang-Can Alù, Andrea Ren, Xi-Feng Qiu, Cheng-Wei Department of Electrical and Computer Engineering National University of Singapore Singapore Singapore Centre for Advanced 2D Materials Graphene Research Centre National University of Singapore Singapore Singapore CAS Key Laboratory of Quantum Information CAS Synergetic Innovation Center of Quantum Information & Quantum Physics University of Science and Technology of China Hefei China Hefei National Laboratory University of Science and Technology of China Hefei China Photonics Initiative Advanced Science Research Center City University of New York New York United States Physics Program Graduate Center City University of New York New York United States The Key Laboratory of Weak-Light Nonlinear Photonics Ministry of Education School of Physics TEDA Applied Physics Institute Nankai University Tianjin China School of Chemistry and Materials Science Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou China

Polarization entanglement holds significant importance for photonic quantum technologies. Recently emerging subwavelength nonlinear quantum light sources, e.g., GaP and LiNbO3 thin films, benefiting from the relaxed phase-matching constraints and volume confinement, has shown intriguing properties, such as high-dimensional hyperentanglement and robust entanglement anti-degradation. Van der Waals (vdW) NbOCl2 crystal, renowned for its superior optical nonlinearities, has emerged as one of ideal candidates for ultrathin quantum light sources [Nature 613, 53 (2023)]. However, polarization-entanglement is inaccessible in NbOCl2 crystal due to its unfavorable nonlinear susceptibility tensor. Here, by leveraging the twist-stacking degree of freedom inherently in vdW systems, we showcase the preparation of tunable polarization entanglement and quantum Bell states. Our work not only provides a new and tunable polarization-entangled vdW photon-pair source, but also introduces a new knob in engineering the entanglement state of quantum light at the nanoscale. © 2024, CC BY-NC-ND.

关键词： Van der Waals forces

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NSF/IEEE CAEME center. An exciting opportunity to align electromagnetic education with the nineties

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computer Applications in engineering Education 1992年第1期1卷 33-33页

作者： Iskander, M.F. CAEME Director Electrical Engineering Department University of Utah Salt Lake City Utah 84112 Dr. Iskander edited two special issues of theJournal of Microwave Power one on “Electromagnetics and Energy Applications” March 1983 and the other on “Electromagnetic Techniques in Medical Diagnosis and Imaging” September 1983. He authored one book onElectromagnetic Fields and Waves published by Prentice Hall in 1992 he edited theCAEME Software Book Vol. I 1991 and he coedited a third book onMicrowave Processing of Materials published by the Materials Research Society in 1991. The holder of seven patents he has contributed 16 chapters to eight research books published more than 90 papers in technical journals and made numerous presentations in technical conferences. In 1983 he received the College of Engineering Outstanding Teaching Award and the College Patent Award for creative innovative and practical invention. In 1984 he was selected by the Utah Section of the IEEE as Engineer of the Year. In 1984 he received the Outstanding Paper Award from the International Microwave Power Institute and in 1985 he received the Curtis W. McGraw ASEE National Research Award for outstanding early achievements by a university faculty member. In 1991 he received the ASEE George Westinghouse National Award for innovation in engineering education. In 1986 Dr. Iskander established the Engineering Clinic Program in the College of Engineering at the University of Utah. Since then the program has attracted more than 45 research projects from 18 companies throughout the United States. He is also the director of the NSF/IEEE Center for Computer Applications in Electromagnetics Education (CAEME). He co-organized symposia on “Microwave Processing of Materials” held in conjunction with Materials Research Society meetings in the Springs of 1990 and 1992 in San Francisco. He also organized several workshops and special sessions in conjunction with IEEE symposia. Dr. Iskander is the editor of the journalComputer Applications i

The National Science Foundation/Institute of electrical and Electronic Engineers (NSF/IEEE) Center for computer Applications in Electromagnetic (EM) Education (CAEME) was funded in early 1990 by the National Science Foundation to stimulate and accelerate the use of computers and software tools in EM education. The Center is managed by the Executive Office of IEEE on behalf of the Antennas and Propagation Society. This organizational structure provided avenues for broad participation by universities, professional societies, and corporations in the Center's activities. In two years of operation, CAEME has organized several workshops and special sessions in international meetings, published its first software book, prepared a lesson on “Electromagnetic Waves” using interactive video, and raised over $ 130,000 from university membership, participating societies, and corporate sponsors. This article summarizes CAEME activities, outlines its organizational structure, and briefly describes the contents of its first software book. Future developments are discussed and avenues for participation are outlined.

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Erratum: “Stabilization of orthorhombic phase in single-crystal ZnSnN2 films” [AIP Advances 6, 075019 (2016)]

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AIP Advances 2018年第12期8卷

作者： Nancy Senabulya Nathaniel Feldberg Robert. A. Makin Yongsoo Yang Guangsha Shi Christina M. Jones Emmanouil Kioupakis James Mathis Roy Clarke Steven M. Durbin 1Applied Physics Program University of Michigan Ann Arbor Michigan 48109 USA 2Department of Physics University at Buffalo Buffalo New York 14260 USA 3Department of Electrical and Computer Engineering Western Michigan University Kalamazoo Michigan 49008-5329 USA 4Department of Physics University of Michigan Ann Arbor Michigan 48109 USA 5Department of Materials Science and Engineering University of Michigan Ann Arbor Michigan 48109 USA

Both these corrections are typographical errors that do not affect the validity of results in the original article.

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Erratum “15.9% organic tandem solar cell with extended near-infrared absorption” [Appl. Phys. Lett. 116, 153501 (2020)]

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Applied Physics Letters 2021年第21期118卷

作者： Xinjing Huang Bangjin Sun Yongxi Li Chao Jiang Dejiu Fan Jian Fan Stephen R. Forrest 1Applied Physics Program University of Michigan Ann Arbor Michigan 48109 USA 2Institute of Functional Nano and Soft Materials Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou Jiangsu 215123 China 3Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor Michigan 48109 USA 4Department of Physics and Material Science and Engineering University of Michigan Ann Arbor Michigan 48109 USA

The authors regret that a related article was not cited in the original published article.1 In the first paragraph, the sentence “We introduce a surface treatme

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Autofluorescence Patterns in Short-Term Cultures of Normal Cervical Tissue

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Photochemistry and Photobiology 2007年第6期71卷

作者： Carrie K. Brookner Michele Follen Iouri Boiko Javier Galvan Sharon Thomsen Anais Malpica Seigo Suzuki Reuben Lotan Rebecca Richards-Kortum Biomedical Engineering Program and Department of Electrical and Computer Engineering University of Texas at Austin Austin TX Department of Gynecologic Oncology U. T. M. D. Anderson Cancer Center Houston TX Department of Pathology U. T. M. D. Anderson Cancer Center Houston TX Department of Tumor Biology U. T. M. D. Anderson Cancer Center Houston TX.

Fluorescence spectroscopy has potential to improve cervical precancer detection. The relationship between tissue biochemistry and fluorescence is poorly understood. The goal of this study was to characterize normal cervical autofluorescence, using fresh tissue short-term tissue cultures and epithelial cell suspensions. Transverse, short-term tissue cultures were prepared from 31 cervical biopsies; autofluorescence images were obtained at 380 and 460 nm excitation. Fluorescence excitation–emission matrices were measured from normal, precancerous and cancerous cervical cell suspensions. Observed fluorescence patterns contrast those reported for frozen–thawed tissue, and were placed into groups with (1) bright epithelial and weak stromal fluorescence; (2) similar epithelial and stromal fluorescence; and (3) weak epithelial and bright stromal fluorescence. The average ages of women in the groups were 30.9, 38.0 and 49.2 years. Epithelial fluorescence intensity was similar in Groups 1 and 2, but weaker in Group 3. Stromal intensity was similar in Groups 2 and 3, but weaker in Group 1. The ratio of epithelial to stromal fluorescence intensity was significantly different for all groups. EEMs of cell suspensions showed peaks consistent with tryptophan, reduced form of nicotinamide adenine dinucleotide (phosphate) and flavin adenine dinucleotide. Short-term tissue cultures represent a novel, biologically appropriate model to understand cervical autofluorescence. Our results suggest a biological basis for the increased fluorescence seen in older, postmenopausal women.

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Bird's-eye view on noise-based logic

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International journal of modern physics. Conference series 2014年第33期33卷 1460363页

作者： Laszlo B Kish Claes G Granqvist Tamas Horvath Andreas Klappenecker He Wen Sergey M Bezrukov Department of Electrical and Computer Engineering Texas A&M University College Station Texas 77843-2128 USA laszlo.kish@ece.tamu.edu. Department of Engineering Sciences The Ångström Laboratory Uppsala University P.O. Box 534 SE-75121 Uppsala Sweden claes-goran.granqvist@angstrom.uu.se. Department of Computer Science University of Bonn Germany Fraunhofer IAIS Schloss Birlinghoven D-53754 Sankt Augustin Germany tamas.horvath@iais.fraunhofer.de. Department of Computer Science Texas A&M University College Station Texas 77843-2128 USA klappi@cse.tamu.edu. College of Electrical and Information Engineering Hunan University Changsha China he_wen82@***. Laboratory of Physical and Structural Biology Program in Physical Biology NICHD National Institutes of Health Bethesda MD 20892 USA.

Noise-based logic is a practically deterministic logic scheme inspired by the randomness of neural spikes and uses a system of uncorrelated stochastic processes and their superposition to represent the logic state. We briefly discuss various questions such as () What does practical determinism mean? () Is noise-based logic a Turing machine? () Is there hope to beat (the dreams of) quantum computation by a classical physical noise-based processor, and what are the minimum hardware requirements for that? Finally, () we address the problem of random number generators and show that the common belief that quantum number generators are superior to classical (thermal) noise-based generators is nothing but a myth.

关键词： Brain Classical versus quantum random number generators Computational complexity Probabilistic Turing machine

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Erratum: “Growth and characterization of β-Ga2O3 thin films by molecular beam epitaxy for deep-UV photodetectors” [J. Appl. Phys. 122, 095302 (2017)]

引用

Journal of Applied Physics 2018年第13期124卷

作者： Susmita Ghose Shafiqur Rahman Liang Hong Juan Salvador Rojas-Ramirez Hanbyul Jin Kibog Park Robert Klie Ravi Droopad 1Material Science Engineering and Commercialization Program Texas State University San Marcos Texas 78666 USA 2Department of Physics University of Illinois at Chicago Chicago Illinois 60607 USA 3Ingram School of Engineering Texas State University San Marcos Texas 78666 USA 4School of Electrical and Computer Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea 5Department of Physics Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 South Korea

We noticed an omission of the acknowledgment and provide it here with apologies:1

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