This article provides an overview of laser-based absorption spectroscopy applications and
discusses the parameter space and requirements of laser systems for each of these …

Thermodynamically induced length fluctuations of high-reflectivity mirror coatings put a
fundamental limit on sensitivity and stability of precision optical interferometers like …

In this Perspective, we summarize the status of technological development for large-area
and low-noise substrate-transferred GaAs/AlGaAs (AlGaAs) crystalline coatings for …

Cavity ring-down spectroscopy is a ubiquitous optical method used to study light-matter
interactions with high resolution, sensitivity and accuracy. However, it has never been …

For trace gas sensing and precision spectroscopy, optical cavities incorporating low-loss
mirrors are indispensable for path length and optical intensity enhancement. Optical …

Femtosecond enhancement cavities are key to applications including high-sensitivity linear,–
and nonlinear, gas spectroscopy, as well as efficient nonlinear optical frequency …

We present the results of Fourier-transform measurements for determination of refractive
indices of four semiconductor alloys in the midinfrared spectral range from 10 to 300 K. We …

Frequency-stabilized mid-infrared lasers are valuable tools for precision molecular
spectroscopy. However, their implementation remains limited by complicated stabilization …

We present our results for simultaneous measurement of the refractive indices of gallium
arsenide (GaAs) and aluminum gallium arsenide (Al x Ga 1-x As) in the spectral region from …

Crystalline materials are promising candidates as substrates or high-reflective coatings of
mirrors to reduce thermal noises in future laser interferometric gravitational wave detectors …