86 citations · 109 across the 7 of their papers we have counts for
8 papers
Injection locking of GHz-frequency surface acoustic wave phononic crystal oscillator
Zichen Xi, Hsuan-Hao Lu, Jun Ji +4
Low-noise gigahertz (GHz) frequencies sources are essential for applications in signal processing, sensing, and telecommunications. Surface acoustic wave (SAW) resonator-based osci…
Room-temperature mid-infrared detection using metasurface-absorber-integrated phononic crystal oscillator
Zichen Xi, Zengyu Cen, Dongyao Wang +9
Mid-infrared (MIR) detectors find extensive applications in chemical sensing, spectroscopy, communications, biomedical diagnosis and space explorations. Alternative to semiconducto…
Enhancing Electrical Properties of Selectively Grown In-Plane InAs Nanowires using InGaAs Buffer and Capping Layers
Pradip Adhikari, Anjali Rathore, Dayrl P Briggs +2
In-plane semiconductor nanowires with complex branched geometries, prepared via selective area growth (SAG), offer a versatile platform for advanced electronics, optoelectronics, a…
Frequency-domain Parallel Computing Using Single On-Chip Nonlinear Acoustic-wave Device
Jun Ji, Zichen Xi, Bernadeta R. Srijanto +4
Multiply-accumulation (MAC) is a crucial computing operation in signal processing, numerical simulations, and machine learning. This work presents a scalable, programmable, frequen…
Low-phase-noise surface-acoustic-wave oscillator using an edge mode of a phononic band gap
Zichen Xi, Joseph G. Thomas, Jun Ji +7
Low-phase-noise microwave-frequency integrated oscillators provide compact solutions for various applications in signal processing, communications, and sensing. Surface acoustic wa…
Solid-State Reactions at Niobium-Germanium Interfaces in Hybrid Superconductor-Semiconductor Devices
Bernardo Langa, Deepak Sapkota, Ivan Lainez +8
Hybrid Superconductor-Semiconductor (S-Sm) materials systems are promising candidates for quantum computing applications. Their integration into superconducting electronics has ena…
Photon bunching in cathodoluminescence induced by indirect electron excitation
Vasudevan Iyer, Kevin Roccapriore, Jacob Ng +3
The impulsive excitation of ensembles of excitons or color centers by a high-energy electron beam results in the observation of photon bunching in the second-order correlation func…
Hidden area and mechanical nonlinearities in freestanding graphene
Ryan J. T. Nicholl, Nickolay V. Lavrik, Ivan Vlassiouk +2
We investigated the effect of out-of-plane crumpling on the mechanical response of graphene membranes. In our experiments, stress was applied to graphene membranes using pressurize…