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We report on theoretical investigations of frequency dependent quantum capacitance. It is found that at finite frequency a quantum capacitor can be characterized by a classical RLC circuit with three parameters: a static electrochemical…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Wang , B. G. Wang , H. Guo

Voltage modulated electroluminescence spectra and low frequency ({\leq} 100 kHz) impedance characteristics of electroluminescent diodes are studied. Voltage modulated light emission tracks the onset of observed negative capacitance at a…

Materials Science · Physics 2012-02-16 Kanika Bansal , Shouvik Datta

Photovoltaic (PV) modules are recently employed in photovoltaic visible light communication (PVLC) for simultaneous energy harvesting and visible light communication. A PV-based receiver features large signal output, easy optical alignment,…

Signal Processing · Electrical Eng. & Systems 2023-05-02 Shuyan Chen , Hui Yu , Ni Zhao , Lian-Kuan Chen

We present a circuit-compatible compact model of the intrinsic capacitances of graphene field-effect transistors (GFETs). Together with a compact drain current model, a large-signal model of GFETs is developed combining both models as a…

Mesoscale and Nanoscale Physics · Physics 2016-09-07 Francisco Pasadas , David Jiménez

Accurate and low-latency qubit state measurement is critical for trapped-ion quantum computing. While deep neural networks (DNNs) have been integrated to enhance detection fidelity, their latency performance on specific hardware platforms…

One of the major challenges in communication, radar, and electronic warfare receivers arises from nearby device interference. The paper presents a 2-6 GHz GaN LNA front-end with onboard sensing, processing, and feedback utilizing…

Signal Processing · Electrical Eng. & Systems 2022-11-29 Jie Yang , Baibhab Chatterjee , Mohammad Abu Khater , Mattias Thorsell , Sten E. Gunnarsson , Tero Kiuru , Shreyas Sen

Resonant cavity LEDs (RCLEDs) exhibit excellent temporal and spatial coherence with narrow spectral linewidth and small divergence angle, which is of great importance for micro-displays. In this paper, we demonstrate a novel method to…

Generating entangled graph states of qubits requires high entanglement rates, with efficient detection of multiple indistinguishable photons from separate qubits. Integrating defect-based qubits into photonic devices results in an enhanced…

In this paper we present several techniques for characterizing longitudinal impedances based on transient measurements of the growth rates and tune shifts of unstable coupled-bunch modes. These techniques are applicable to measurement of…

Accelerator Physics · Physics 2008-11-26 D. Teytelman , J. Fox , S. Prabhakar , J. Byrd

A prior-guided deep learning (DL) based interference mitigation approach is proposed for frequency modulated continuous wave (FMCW) radars. In this paper, the interference mitigation problem is tackled as a regression problem. Considering…

Signal Processing · Electrical Eng. & Systems 2022-12-07 Jianping Wang , Runlong Li , Yuan He , Yang Yang

We study scattering resonances of finite and infinite periodic two- and three-dimensional systems of high-contrast resonators beyond the subwavelength regime. Introducing frequency-dependent capacitance matrices, we derive quantitative…

Analysis of PDEs · Mathematics 2026-05-28 Habib Ammari , Bowen Li , Ping Liu , Yingjie Shao , Alexander Uhlmann

Trench defects in multi-quantum wells (MQWs) have been considered as flawed structures that severely degrade the internal quantum efficiency of light-emitting diodes (LEDs) in the past. In this research, trench defects are innovatively…

Materials Science · Physics 2024-07-19 Z. Pan , Z. Chen , H. Zhang , H. Yang , Y. Chen , J. Nie , C. Deng , B. Dong , D. Wang , Y. Li , H. Lin , W. Chen , F. Jiao , X. Kang , C. Jia , Z. Liang , Q. Wang , G. Zhang , B. Shen

The analytical model of the small-signal current and capacitance characteristics of RF graphene FET is presented. The model is based on explicit distributions of chemical potential in graphene channels (including ambipolar conductivity at…

Mesoscale and Nanoscale Physics · Physics 2011-12-19 Gennady I. Zebrev , Alexander A. Tselykovskiy , Daria K. Batmanova , Evgeny V. Melnik

Learned image compression (LIC) has gained traction as an effective solution for image storage and transmission in recent years. However, existing LIC methods are redundant in latent representation due to limitations in capturing…

Image and Video Processing · Electrical Eng. & Systems 2024-12-17 Han Li , Shaohui Li , Wenrui Dai , Chenglin Li , Junni Zou , Hongkai Xiong

We study scattering resonances of finite one-dimensional systems of high-contrast resonators beyond the subwavelength regime. Introducing a novel tridiagonal frequency-dependent capacitance matrix, we derive quantitative asymptotic…

Analysis of PDEs · Mathematics 2026-04-02 Habib Ammari , Bowen Li , Ping Liu , Yingjie Shao

High renewable penetration has significantly reduced system inertia in modern power grids, increasing the need for fast frequency response (FFR) from distributed and non-traditional resources. While electric vehicles (EVs), data centers,…

Systems and Control · Electrical Eng. & Systems 2025-12-17 Xiaojie Tao , Rajit Gadh

Advances in power electronics have made it possible to achieve high power levels, e.g., reaching GW in grids, or alternatively high output bandwidths, e.g., beyond MHz in communication. Achieving both simultaneously, however, remains…

Signal Processing · Electrical Eng. & Systems 2023-09-13 Jinshui Zhang , Boshuo Wang , Xiaoyang Tian , Angel Peterchev , Stefan Goetz

High impedance connecting links and cables are modeled at low frequency in terms of their impedance to ground and to neigbouring connecting links. The impedance is usually considered to be the parallel combination of a resistance and a…

Instrumentation and Detectors · Physics 2013-07-18 Andrea Giachero , Claudio Gotti , Matteo Maino , Gianluigi Pessina

Chip-based cavity quantum electrodynamics (QED) devices consisting of a self-assembled InAs quantum dot (QD) coupled to a high quality factor GaAs microdisk cavity are coherently probed through their optical channel using a fiber taper…

Quantum Physics · Physics 2009-11-13 Kartik Srinivasan , Christopher P. Michael , Raviv Perahia , Oskar Painter

Guided-wave plasmonic circuits are promising platforms for sensing, interconnection, and quantum applications in the sub-diffraction regime. Nonetheless, the loss-confinement trade-off remains a collective bottleneck for plasmonic-enhanced…

Optics · Physics 2020-11-12 Charles Lin , Pohan Chang , Yiwen Su , Amr S Helmy
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