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A pulsed oscillating power amplifier has been developed for high frequency biasing\cite{kn:deb1} and real time turbulent feedback experiment in STOR-M tokamak. It is capable to provide output peak to peak oscillating voltage of around…

Instrumentation and Detectors · Physics 2020-04-22 Debjyoti Basua , Masaru Nakajimaa , A. V. Melnikov , David McColl , Chijin Xiao , Akira Hirose

We present a tunable microwave scattering device that allows the controlled variation of Fano line shape parameters in transmission through quantum billiards. Transport in this device is nearly fully coherent. By comparison with quantum…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. Rotter , F. Libisch , J. Burgdörfer , U. Kuhl , H. -J. Stöckmann

Acoustic wave devices provide a promising chip-scale platform for efficiently coupling radio frequency (RF) and optical fields. Here, we use an integrated piezo-optomechanical circuit platform that exploits both the piezoelectric and…

Capacitive coupling wireless power transfer (CCWPT) is one of the pervasive methods to transfer power in the reactive near-field zone. In this paper, a flexible design methodology based on Binary Particle Swarm Optimization (BPSO) algorithm…

Systems and Control · Electrical Eng. & Systems 2024-08-22 Rasool Keshavarz , Ehsan Majidi , Ali Raza , Negin Shariati

LINAC 4 is a normal conducting H- linac proposed at CERN to provide a higher proton flux to the CERN accelerator chain. It should replace the existing LINAC 2 as injector to the Proton Synchrotron Booster and can also operate in the future…

Accelerator Physics · Physics 2007-05-23 M. Baylac , J. M. De Conto , E. Froidefond , E. Sargsyan

Tunable couplers have recently become one of the most powerful tools for implementing two-qubit gates between superconducting qubits. A tunable coupler typically includes a nonlinear element, such as a SQUID, which is used to tune the…

Wireless power transfer (WPT) is expected to be a technology reshaping the landscape of low-power applications such as the Internet of Things, machine-to-machine communications and radio frequency identification networks. Although there has…

Information Theory · Computer Science 2016-05-05 Yang Huang , Bruno Clerckx

Pulse shaping is important for communications, spectroscopy, and other applications that require high peak power and pulsed operation, such as radar systems. Unfortunately, pulse shaping remains largely elusive for terahertz (THz)…

Optics · Physics 2021-06-23 Seyed Mohammadreza Razavizadeh

This paper presents the analytical design of a new wide tuning range and low-noise millimeter-wave voltage control oscillators (VCO) for 5G technology. The small signal model analysis and phase noise of the VCOs will be presented to…

Signal Processing · Electrical Eng. & Systems 2025-11-13 Minh Xuan Bui , Nguyen Thien Dat , Van Hong Lam , Tran Le Anh Quan , Pham Hung Anh , Mai Dong Xuan , Ke Wang

Tunable evanescent coupling is used to modify the optomechanical interactions within a split-beam photonic crystal nanocavity. An optical fiber taper probe is used to renormalize the optical nanocavity field and introduce a dissipative…

Mesoscale and Nanoscale Physics · Physics 2014-07-02 Aaron C. Hryciw , Marcelo Wu , Behzad Khanaliloo , Paul E. Barclay

We report on the experimental investigation of the transmission spectra for acoustic waves through temporal phononic crystals (TPCs), which are designed structures with periodically time-varying density and bulk modulus. In our experiment,…

Materials Science · Physics 2013-05-08 Xujun Dong , Yangtao Ye , Bing Wang , Chunyin Qiu , Manzhu Ke , Zhengyou Liu

We present a topology for linear accelerators (linacs) that permits larger degrees of freedom for the optimization of individual cavity shapes. The power is distributed to the cavities through a waveguide with periodic apertures that…

Accelerator Physics · Physics 2020-09-16 Sami Tantawi , Mamdouh Nasr , Zenghai Li , Cecile Limborg , Philipp Borchard

Model predictive control (MPC) has been used successfully in diverse applications. As its name suggests, MPC requires a model for predictive optimization. The present paper focuses on the application of MPC to a Rijke tube, in which a…

Systems and Control · Electrical Eng. & Systems 2024-02-02 Juan A. Paredes , Dennis S. Bernstein

Reconfigurable photonic integrated circuits (PICs) can implement arbitrary operations and signal processing functionalities directly in the optical domain. Run-time configuration of these circuits requires an electronic control layer to…

Among the many solid-state emitters being explored for scalable quantum technologies, the silicon T centre is a leading candidate offering long-lived spin qubits, a telecommunications-band spin-photon interface, and integration with on-chip…

Interlayer coupling effects between high mobility two-dimensional superconductors are studied in bilayer delta-doped SrTiO3 heterostructures. By tuning the undoped SrTiO3 spacer layer between the dopant planes, clear tunable coupling is…

Superconductivity · Physics 2013-12-24 Hisashi Inoue , Minu Kim , Christopher Bell , Yasuyuki Hikita , Srinivas Raghu , Harold Y. Hwang

Movable antennas (MAs) have attracted growing interest for their ability to improve channel conditions via adaptive antenna movement. Nevertheless, such movement inevitably introduces mutual coupling (MC), whose impact has been largely…

Information Theory · Computer Science 2026-04-30 Tianyi Liao , Wei Guo , Jun Qian , Zixin Wang , Shenghui Song , Jun Zhang , Khaled B. Letaief

Neuromorphic computing, inspired by the brain's parallel and energy-efficient processing, offers a transformative approach to artificial intelligence. In this study, we fabricated optimized spin-transfer torque nano-oscillators (STNOs) and…

Magnetic resonant coupling (MRC) is a practically appealing method for realizing the near-field wireless power transfer (WPT). The MRC-WPT system with a single pair of transmitter and receiver has been extensively studied in the literature,…

Systems and Control · Computer Science 2015-02-10 Mohammad R. Vedady Moghadam , Rui Zhang

We have proposed and experimentally verified a tunable inter-qubit coupling scheme for large-scale integration of superconducting qubits. The key feature of the scheme is the insertion of connecting pads between qubit and tunable coupling…

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