3 papers
physics.optics2026
Nonlinear exceptional points in an integrated acoustic-wave oscillator for longwave infrared sensing
Linbo Shao, Zichen Xi, Zengyu Cen +8
Exceptional points (EP) featuring enhanced responsivity and rich dynamics have attracted extensive attentions in device developments and sensing applications. However, it remains d…
physics.optics2025
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…
physics.app-ph2025
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…