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In high-performance RF photonic systems, the Electro-Optic (EO) modulators play a critical role as a key component, requiring low SWaP-C and high linearity. While traditional lithium niobate (LiNbO$_3$) Mach-Zehnder Modulators (MZMs) have…

Optics · Physics 2023-08-31 Md Jubayer Shawon , Vishal Saxena

This paper introduces a novel atmospheric pressure and frequency-tunable microwave plasma jet utilizing evanescent-mode cavity resonator technology. The design uses a substrate-integrated waveguide approach, where two PCB substrates are…

Plasma Physics · Physics 2024-12-18 Kazi Sadman Kabir , Abbas Semnani

The paper studies the interaction of Lamb waves with the free edge of a plate. The reflection coefficients of a Lamb mode at a plate free edge are calculated using a semi-analytical method, as a function of frequency and angle of incidence.…

Materials Science · Physics 2016-07-27 Benoît Gérardin , Jérôme Laurent , Claire Prada , Alexandre Aubry

A comparative analysis of vector control scheme based on different current control switching pulses (HC, SPWM, DPWM and SVPWM) for the speed response of motor drive is analysed in this paper. The control system using different switching…

Systems and Control · Electrical Eng. & Systems 2022-04-07 Muhammad Usama , Jaehong Kim

This paper presents a Direct Mapped Method (DMM) for real-time simulation of high switching frequency resonant converters. The DMM links state variables to diode statuses and provides an exact and noniterative solution to network equations.…

Systems and Control · Electrical Eng. & Systems 2020-06-09 Hossein Chalangar , Tarek Ould-Bachir , Keyhan Sheshyekani , Jean Mahseredjian

In high-dynamic range (HDR) analog-to-digital converters (ADCs), having many quantization bits minimizes quantization errors but results in high bit rates, limiting their application scope. A strategy combining modulo-folding with a low-DR…

Signal Processing · Electrical Eng. & Systems 2023-11-23 Satish Mulleti , Resham Yashwanth Kumar , Laxmeesha Somappa

Recent work introduced a systematic method for designing so-called azimuthally modulated RF cavities that support transverse magnetic modes composed of user-desired multipoles, enabling precision control of the magnitude and orientation of…

Accelerator Physics · Physics 2026-05-22 Laurence Wroe , Walter Wuensch , Robert Apsimon

All-optical switching used to switch the input optical signals without any electro-optical conversion plays a vital role in the next generation of optical information processing devices. Even all-optical switchings (AOSs) with continuous…

Quantum Physics · Physics 2022-03-23 Yingying Han , Wenxian Zhang , Weidong Li

A novel grating modulation technique for laser arrays is proposed and demonstrated. This method modifies the initial phase within each grating period, applying a total phase shift that increments in an arithmetic progression, ensuring equal…

This paper proposes and analyzes a distributed MAC protocol that achieves zero collision with no control message exchange nor synchronization. ZC (ZeroCollision) is neither reservation-based nor dynamic TDMA; the protocol supports…

Networking and Internet Architecture · Computer Science 2009-04-16 Jiwoong Lee , Jean C. Walrand

The prevalent high intrinsic absorption in the crystalline state of phase-change materials (PCMs), typically leads to a decline in modulation efficiency for phase-change metasurfaces, underutilizing their potential for quasi-continuous…

Optics · Physics 2024-10-22 Luoyao Chu , Yan Li , Shunyu Yao , Yuru Li , Siqing Zeng , Zhaohui Li

Voltage-induced dynamic switching in magnetic tunnel junctions (MTJs) is a writing technique for voltage-controlled magnetoresistive random access memory (VCMRAM), which is expected to be an ultimate non-volatile memory with ultra-low power…

Mesoscale and Nanoscale Physics · Physics 2022-11-15 Rie Matsumoto , Shinji Yuasa , Hiroshi Imamura

We theoretically investigate the transport and shot noise properties of a one-dimensional semiconducting nanowire with Rashba spin-orbit coupling~(SOC) placed in closed proximity to a bulk $s$-wave superconductor and an altermagnet with…

Mesoscale and Nanoscale Physics · Physics 2025-03-06 Debashish Mondal , Amartya Pal , Arijit Saha , Tanay Nag

In this paper, a novel adaptive-gain Second Order Sliding Mode (SOSM) observer is proposed for multicell converters by considering it as a class of hybrid systems. The aim is to reduce the number of voltage sensors by estimating the…

Systems and Control · Computer Science 2013-05-31 Jianxing Liu , Salah Laghrouche , M. Harmouche , Maxime Wack

This paper describes electrical design and operational characteristics of a zero-voltage-switching 20 kHz polyphase bridge, boost converter/modulator for klystron pulse application. The DC-DC converter derives the buss voltages from a…

Accelerator Physics · Physics 2007-05-23 William A. Reass , James D. Doss , Robert F. Gribble , Michael T. Lynch , Paul J. Tallerico

By using mutual flux-attaching singular gauge transformations, we derive an effective action describing the zero temperature quantum phase transition from d-wave superconductor to underdoped regime. In this effective action, quantum…

Superconductivity · Physics 2007-05-23 Jinwu Ye , A. Millis

We investigate the magnetic-field-induced frequency shift (MFS) of the clock "0-0" transition in the microwave quantum frequency standard (atomic clock) based on coherent population trapping (CPT) in $^{87}$Rb vapor. To scan the CPT…

Atomic Physics · Physics 2025-04-28 V. I. Vishnyakov , D. V. Brazhnikov , M. N. Skvortsov

Surface states generally degrade semiconductor device performance by raising the charge injection barrier height, introducing localized trap states, inducing surface leakage current, and altering the electric potential. Therefore, there has…

Achieving precise, individual control over qubits within scalable quantum processors is critically hampered by parasitic couplings and spectral crowding, leading to detrimental crosstalk. While optimal absorption strategies based on…

Quantum Physics · Physics 2025-06-05 Deepanshu Trivedi , Laraib Niaz , Alex Krasnok

In this paper, a full-bridge boost power converter topology is studied for power factor control, using output high order sliding mode control. The AC/DC converters are used for charging the battery and super-capacitor in hybrid electric…

Optimization and Control · Mathematics 2013-05-31 Jianxing Liu , Salah Laghrouche , Maxime Wack
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