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2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： LaMountain, J. Raju, A. Briggs, A. Wasserman, D. Podolskiy, V.A. Department of Physics and Applied Physics University of Massachusetts Lowell One University Avenue LowellMA01854 United States Department of Electrical and Computer Engineering University of Texas Austin AustinTX78758 United States

Photonic funnels have been demonstrated as a flexible platform to confine light to deep subwavelength spatial areas. Here we consider the utility of this platform to provide temporal, as well as spatial, light shaping...

ISBN: (纸本)9781957171258

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Magnetic‑free chiral eigenmode spectroscopy for simultaneous sensitive measurement of optical rotary dispersion and circular dichroism

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eLight 2024年第1期4卷 160-171页

作者： Wenpeng Zhou Ya‑Ping Ruan Haodong Wu Han Zhang Jiang‑Shan Tang Zhenda Xie Lei Tang Yu Wang Yue-E Ji Kunpeng Jia Cheng‑Wei Qiu Yan‑Qing Lu Keyu Xia College of Engineering and Applied Sciences Nanjing UniversityNanjing 210023China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210023China School of Physics Nanjing UniversityNanjing 210023China School of Electronic Science and Engineering Nanjing UniversityNanjing 210023China Department of Electrical and Computer Engineering Engineering Drive 3National University of SingaporeSingapore 117583Singapore Hefei National Laboratory Hefei 230088China

Chirality,defined by Lord Kelvin,refers to the geometric symmetry property of an object that cannot be superposed onto its mirror image using rotations and *** material’s chirality can be probed with light as the optical activity:optical rotary dispersion(ORD)and circular dichroism(CD).It is still challenging to yield extremely sensitive ORD and CD for very weak chirality and measure both *** ringdown polarimetry has been reported to improve ORD detection sensitivity with the absence of equally important CD signature,at the price of high cavity finesse near 400,frequency-locking sophistication,and large magnetic ***,we report a unique recipe to demonstrate the simultaneous measurement of ORD and the CD by separately observing the chiral eigenmode spectra from a bowtie optical cavity with a finesse about 30,without resorting to frequency locking or magnetic *** obtain a sensitivity of2.7×10^(−3)deg/√Hz for ORD,8.1×10^(−6)/√Hz for CD,and a spectral resolution of 0.04 pm within a millisecond-scale *** present a cost-effective yet ultrasensitive account for chiral chromatography,the conformational dynamics and chiroptical analysis of biological samples which particularly exhibit weak and narrow spectral signals.

关键词： Chiral material Optical rotary dispersion Circular dichroism Cavity-enhanced chiral eigenmode spectroscopy

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Small. Low Power Salinity Sensors Based on Solid State Potentiometry for Ocean Applications

Small. Low Power Salinity Sensors Based on Solid State Poten...

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2023 MTS/IEEE U.S. Gulf Coast, OCEANS 2023

作者： Nawaz, Anuscheh Chung, Jae-Hyun Soelberg, Scott D. Burnett, David C. Kucewicz, John Steele, Michael University of Washington Applied Physics Labortory Seattle United States University of Washington Mechanical Engineering Department Seattle United States Portland State University Electrical and Computer Engineering Department Portland United States

ISBN: (纸本)9798218142186

Solid state potentiometry measures ion concentration is explored for ocean sciences. A small, low cost and low power sensor to measure salinity is currently not available in ocean sciences, but could unlock large scale spatial and temporal characterization of oceanographic areas of interest, such as the Arctic or coastal environments. To date these types of sensors are typically calibrated before each measurement, and target low concentrations. The challenge for these oceanographic environments is that the relevant concentration is much higher than usual for these sensors, and that calibration cannot take place before each measurement as buoy deployment is necessary for long term data collection. We are developing a small, low power salinity sensor based on chloride ion measurement, targeted at 20 ppt to 40 ppt, at sensitivities of 0.1 ppt. Here, we present current characterization results with respect to chloride ion concentration, temperature, and drift, and discuss methods to reduce and potentially measure drift in-situ. © 2023 The Marine Technology Society (MTS).

关键词： Ions

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Second-harmonic conformal transformation for visible and in-situ detection of infrared optical vortices

Second-harmonic conformal transformation for visible and in-...

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2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Liu, Yuan Chen, Wei Ming, Yang Zhang, Wang Tang, Jie Yuan, Rui Hu, Wei Lu, Yan-Qing College of Engineering and Applied Sciences Nanjing University Nanjing210093 China Department of Electrical and Computer Engineering National University of Singapore Singapore117583 Singapore Department of Physics Nantong University Nantong226019 China

ISBN: (纸本)9781957171258

Conformal transformation provides an effective way to detect optical orbital angular momentum (OAM). We demonstrate here a second-harmonic spiral transformation that enables infrared-visible detection of OAM states with a low energy loss. Remarkably, we predict and observe a record-high optical finesse, indicating improved separation efficiency enabled by this m e t h o d. © Optica Publishing Group 2023.

关键词： Energy dissipation

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Quasi-Bound States in the Continuum and Enhanced Light-Matter Interactions in GaN/InGaN Epitaxial Metasurfaces

Quasi-Bound States in the Continuum and Enhanced Light-Matte...

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2024 Laser Science, LS 2024

作者： Xu, Yuan Liu, Jiangnan Singh, Anshuman Tsai, Cheng-Chia Malek, Stephanie C. Shin, Walter Jin Wu, Jiahao Zhu, Freddie Liu, David Yu, Nanfang Mi, Zetian Soltani, Mohammad Department of Applied Physics and Applied Mathematics Columbia University New YorkNY10027 United States Department of Electrical Engineering and Computer Science University of Michigan Ann ArborMI48109 United States Raytheon BBN Technologies CambridgeMA02138 United States

We fabricated GaN metasurfaces doped with InGaN quantum dots by templated molecular beam epitaxy (MBE) that support tunable high Q-factor quasi-bound states in the continuum (q-BICs) and demonstrated efficient optical... 详细信息

关键词： Gallium nitride

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Enhanced Light-Matter Interactions for a Single T Center in a Silicon Nanocavity

Enhanced Light-Matter Interactions for a Single T Center in ...

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CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Wong, Yu-En Johnston, Adam Felix-Rendon, Ulises Chen, Songtao Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Smalley-Curl Institute Rice University HoustonTX77005 United States

We investigate light-matter interactions for a single T center coupled to a silicon photonic crystal cavity. By solving Lindblad master equation, we extract the cavity-QED parameters for the coupled system. © Opt... 详细信息

ISBN: (纸本)9781957171395

关键词： Silicon photonics

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Purcell Enhancement of a Single T Center Coupled to a Silicon Nanophotonic Cavity

Purcell Enhancement of a Single T Center Coupled to a Silico...

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CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Felix-Rendon, Ulises Johnston, Adam Wong, Yu-En Chen, Songtao Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States Smalley-Curl Institute Rice University HoustonTX77005 United States

We demonstrate Purcell enhancement of a single T center integrated in a silicon photonic crystal cavity, increasing the fluorescence decay rate by a factor of 6.89 and achieving a photon outcoupling rate of 73.3 kHz. ... 详细信息

ISBN: (纸本)9781957171395

关键词： Silicon photonics

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Recognition of Greek Alphabet Characters with Memristive Neuromorphic Circuit 2

Recognition of Greek Alphabet Characters with Memristive Neu...

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2nd Edition IEEE International Conference on Metrology for eXtended Reality, Artificial Intelligence and Neural engineering, MetroXRAINE 2023

作者： Chatzinikolaou, Theodoros Panagiotis Chatzipaschalis, Ioannis K. Tsakalos, Karolos-Alexandros Karamani, Rafailia-Eleni Fyrigos, Iosif-Angelos Kitsios, Stavros Bousoulas, Panagiotis Tsoukalas, Dimitris Sirakoulis, Georgios Ch. Democritus University of Thrace Department of Electrical and Computer Engineering Xanthi Greece Universitat Politécnica de Catalunya Department of Electronic Engineering Barcelona Spain National Technical University of Athens Department of Applied Physics Athens Greece

ISBN: (纸本)9798350300802

Pattern recognition is a critical aspect of modern computing and artificial intelligence, enabling robotic and computing systems to classify and categorize information based on its patterns and relationships. In this context, memristors are emerging as a promising new type of device for pattern recognition due to their memory capabilities as non-volatile two-terminal elements and in-memory computing potential. In this work, we present a novel approach to character recognition using CBRAM memristors by combining traditional machine learning techniques with a memristor-based oscillator exhibiting neuromorphic properties. The proposed approach demonstrates the feasibility of a pattern recognition specific hardware based on memristors that can be integrated in edge computing applications, aiming to bring computation and data storage closer to the source of data, rather than relying on centralized data centers, and consequently, leading to improved latency, increased reliability, and reduced costs. © 2023 IEEE.

关键词： memristive neuromorphic circuit memristive oscillators neuromorphic computing pattern recognition

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Scalable Quantum Photonic Neural Network Processor via Cavity-Assisted Interactions

Scalable Quantum Photonic Neural Network Processor via Cavit...

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CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Basani, Jasvith Raj Niu, Murphy Yuezhen Waks, Edo Department of Electrical and Computer Engineering Institute for Research in Electronics and Applied Physics Joint Quantum Institute University of Maryland College ParkMD20742 United States Department of Computer Science Joint Center for Quantum Information and Computer Science University of Maryland College ParkMD20742 United States

We present an integrated photonic architecture that uses a single atom trapped in a cavity for deterministic high-fidelity quantum operations. Our design is unique in providing a photon-number-selective nonlinearity, ... 详细信息

ISBN: (纸本)9781957171395

关键词： Photonic integrated circuits

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Integrated Photonic Platform for Low Noise Microwave Generation

Integrated Photonic Platform for Low Noise Microwave Generat...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

作者： Kudelin, Igor Groman, William Ji, Qing-Xin Guo, Joel Kelleher, Megan Lee, Dahyeon Nakamura, Takuma McLemore, Charles A. Shirmohammadi, Pedram Hanifi, Samin Cheng, Haotian Jin, Naijun Wu, Lue Halladay, Samuel Luo, Yizhi Dai, Zhaowei Jin, Warren Bai, Junwu Liu, Yifan Zhang, Wei Xiang, Chao Chang, Lin Iltchenko, Vladimir Miller, Owen Matsko, Andrey Bowers, Steven M. Rakich, Peter T. Campbell, Joe Bowers, John Vahala, Kerry Quinlan, Franklyn Diddams, Scott A. Department of Physics University of Colorado BoulderCO United States Time and Frequency Division National Institute of Standards and Technology BoulderCO United States T.J. Watson Laboratory of Applied Physics California Institute of Technology PasadenaCA United States Department of Electrical and Computer Engineering University of California Santa BarbaraCA United States Electrical and Computer Engineering University of Virginia CharlottesvilleVA United States Department of Applied Physics Yale University New HavenCT United States Jet Propulsion Laboratory California Institute of Technology PasadenaCA United States Department of Electrical Computer and Energy Engineering University of Colorado BoulderCO United States

Using integrated photonic chip components for'2-point' optical frequency division, we generate a 20 GHz microwave signal with phase noise of −135 dBc/Hz at 10 kHz offset. © Optica Publishing Group 2024 &#... 详细信息

ISBN: (纸本)9781957171395

关键词： Microwave generation

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