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This expository manuscript presents generalized expressions for the low-frequency voltage gain and terminal impedances of each of the three fundamental bipolar-amplifier topologies (i.e., common emitter, common base, and common collector).…

Hardware Architecture · Computer Science 2023-09-19 Brian Hong

The efficient detection of light from trapped ions in free space is paramount for most of their applications. We propose a scheme to enhance the photon collection from linear ion strings. It employs the constructive interference of light…

Quantum Physics · Physics 2024-12-18 T. D. Tran , D. Babjak , A. Kovalenko , K. Singh , M. T. Pham , P. Obšil , A. Lešundák , O. Číp , L. Slodička

Traps and structural defects at the hole and electron transport interfaces of the microcrystalline absorber limits the efficiency and long-term stability of perovskite solar cells (PSCs) due to accumulation of the ionic clusters,…

This work explores the consequences of introducing a piezoelectric gate barrier in a normal field-effect transistor. Because of the positive feedback of strain and piezoelectric charge, internal charge amplification occurs in such an…

Mesoscale and Nanoscale Physics · Physics 2015-05-05 Raj K. Jana , Arvind Ajoy , Gregory Snider , Debdeep Jena

The self-heating effect is a severe issue for high-power semiconductor devices, which degrades the electron mobility and saturation velocity, and also affects the device reliability. On applying an ultrafast and high-resolution…

Applied Physics · Physics 2017-11-13 Hong Zhou , Kerry Maize , Jinhyun Noh , Ali Shakouri , Peide D. Ye

With the evolution of radio frequency (RF)/microwave technology, there is a demand for circuits which are able to meet highly challenging RF frontend specifications. Silicon-on-insulator (SOI) technology is one of the leading platforms for…

Positron sources are critical components of the future linear collider projects. This is essentially due to the high luminosity required, orders of magnitude higher than existing ones. In addition, polarization of the positron beam rather…

Accelerator Physics · Physics 2014-05-13 I. Chaikovska , R. Chehab , O. Dadoun , P. Lepercq , A. Variola

To achieve high performance thermoelectric materials and devices, thermoelectric transistors, which integrate thermoelectric effects with transistor technology, represent a promising approach. Here p type Bi0.5Sb1.5Te3 and n type…

Applied Physics · Physics 2025-11-10 Chen Tang , Bohang Nan , Xiaodong Liu , Guiying Xu

A current problem in semiconductor spin-based electronics is the difficulty of experimentally expressing the effect of spin-polarized current in electrical circuit measurements. We present a theoretical solution with the principle of…

Mesoscale and Nanoscale Physics · Physics 2008-02-20 Hanan Dery , Lukasz Cywinski , Lu J. Sham

In this article, we propose a new paradigm for training spiking neural networks (SNNs), spike accumulation forwarding (SAF). It is known that SNNs are energy-efficient but difficult to train. Consequently, many researchers have proposed…

Neural and Evolutionary Computing · Computer Science 2024-07-01 Ryuji Saiin , Tomoya Shirakawa , Sota Yoshihara , Yoshihide Sawada , Hiroyuki Kusumoto

The paper proposes a model of an organic solar cell based on Tamm plasmon polariton localized at the boundary of the active layer doped with plasmon nanoparticles and a multilayer mirror. It is shown that the integral absorption in the…

Applied Physics · Physics 2021-11-05 R. G. Bikbaev , S. Ya. Vetrov , I. V. Timofeev , V. F. Shabanov

Conventional Generative Adversarial Networks (GANs) for text generation tend to have issues of reward sparsity and mode collapse that affect the quality and diversity of generated samples. To address the issues, we propose a novel…

Computation and Language · Computer Science 2020-02-13 Wangchunshu Zhou , Tao Ge , Ke Xu , Furu Wei , Ming Zhou

The concept of a magnetic bipolar transistor (MBT) is introduced. The transistor has at least one magnetic region (emitter, base, or collector) characterized by spin-splitting of the carrier bands. In addition, nonequilibrium (source) spin…

Condensed Matter · Physics 2007-05-23 Jaroslav Fabian , Igor Zutic , S. Das Sarma

A major challenge for quantum computers is the scalable simultaneous execution of quantum gates. One approach to address this in trapped ion quantum computers is the implementation of quantum gates based on static magnetic field gradients…

In the present work, we theoretically demonstrate, for the first time, that near field radiative transport between 1D periodic grating microstructures separated by subwavelength vacuum gaps can be significantly enhanced by exciting magnetic…

Mesoscale and Nanoscale Physics · Physics 2020-07-16 Yue Yang , Liping Wang

$\beta$-Ga$_{2}$O$_{3}$ based enhancement mode transistor designs are critical for the realization of low loss, high efficiency next generation power devices with rudimentary driving circuits. A novel approach towards attaining a high…

Applied Physics · Physics 2020-12-02 Dipankar Biswas , Chandan Joishi , Jayeeta Biswas , Prabhans Tiwari , Saurabh Lodha

Refractive metasurfaces (RMTSs) offer a promising solution to improve energy efficiency of wireless systems. To address the limitations of single-layer RMTS, stacked intelligent metasurfaces (SIMs), which form the desired precoder and…

Signal Processing · Electrical Eng. & Systems 2024-09-27 Maryam Rezvani , Raviraj Adve , Akram bin Sediq , Amr El-Keyi

This paper proposes a novel metamaterial-inspired absorber designed to enhance the data rate in 52% RF to DC conversion simultaneous wireless information and power transfer system (SWIPT) through biological tissue. The proposed absorber…

Systems and Control · Electrical Eng. & Systems 2024-10-17 Zhengchen Dong , Xin Jiang , Adel Barakat , Ramesh K. Pokharel

Gallium nitride (GaN) as a wide-band gap material has been widely used in solid-state lighting. Thanks to its high nonlinearity and high refractive index contrast, GaN-on-insulator (GaNOI) is also a promising platform for nonlinear optical…

Practical device architectures are proposed here for the implementation of three-terminal heterojunction bipolar transistor solar cells (3T-HBTSCs). These photovoltaic devices, which have a potential efficiency similar to that of…

Applied Physics · Physics 2019-04-30 Pablo G. Linares , Elisa Antolín , Antonio Martí