3 papers
physics.optics2026
All-band photonic integrated optical parametric amplification
Nikolai Kuznetsov, Zihan Li, Tobias J. Kippenberg
Optical amplifiers are ubiquitous in science and technology and are the workhorse of modern communications. Currently, virtually all amplifiers rely on atomic resonances, such as r…
physics.optics2026
An integrated photonic millimeter-wave receiver with sub-ambient noise
Junyin Zhang, Shuhang Zheng, Jiachen Cai +6
Decades of progress in radiofrequency (RF) transistors and receiver frontends have profoundly impacted wireless communications, remote sensing, navigation, and instrumentation. Gro…
physics.optics2025
Watt-level second harmonic generation in periodically poled thin-film lithium tantalate
Nikolai Kuznetsov, Zihan Li, Tobias J. Kippenberg
Second-harmonic generation (SHG) is a fundamental tool in modern laser technology, enabling coherent frequency conversion to remote optical bands, serving as the basis for self-ref…