1.8k citations · 11.6k across the 75 of their papers we have counts for
60 papers · 1 filter
Bright Coherent Ultrahigh Harmonics in the keV X-Ray Regime from Mid-Infrared Femtosecond Lasers
Tenio Popmintchev, Ming-Chang Chen, Dimitar Popmintchev +17
High harmonic generation traditionally combines ~100 near-infrared laser photons, to generate bright, phase matched, extreme ultraviolet beams when the emission from many atoms add…
Narrow linewidth semiconductor lasers based on nonlinear self-injection locking
Andrew M. Bishop, Alexander L. Gaeta
Self-injection locking techniques for stabilizing lasers have been developed using passive cavities to increase the effective lifetime of the laser cavity, thereby reducing the lin…
All-optical frequency division on-chip using a single laser
Yun Zhao, Jae K. Jang, Karl J. McNulty +4
The generation of spectrally pure high-frequency microwave signals is a critical functionality in fundamental and applied sciences, including metrology and communications. The deve…
Ultra-Low-Loss Silicon Nitride Photonics Based on Deposited Films Compatible with Foundries
Xingchen Ji, Yoshitomo Okawachi, Andres Gil-Molina +4
The fabrication processes of silicon nitride photonic devices used in foundries require low temperature deposition, which typically leads to high propagation losses. Here, we show…
Integrated Electro-Optic Isolator on Thin Film Lithium Niobate
Mengjie Yu, Rebecca Cheng, Christian Reimer +9
Optical isolator is an indispensable component of almost any optical system and is used to protect a laser from unwanted reflections for phase-stable coherent operation. The develo…
Large regenerative parametric amplification on chip at ultra-low pump powers
Yun Zhao, Jae K. Jang, Xingchen Ji +3
Chip-based optical amplifiers can significantly expand the functionalities of photonic devices. In particular, optical-parametric amplifiers (OPAs), with engineerable gain-spectra,…