119 citations · 393 across the 16 of their papers we have counts for
16 papers
Ion-Beam-Sputtered Mid-Infrared Coatings for Hybrid Supermirrors
Lukas W. Perner, Valentin J. Wittwer, Gar-Wing Truong +3
We report on the development of low-loss ion-beam-sputtered (IBS) mid-infrared coatings for hybrid supermirrors. Two highly reflective designs were realized: HR1, a 4-period a-Si/S…
Precise Measurement of Refractive Indices in Thin Film Heterostructures
Lukas W. Perner, Gar-Wing Truong, David Follman +5
We present a robust, precise, and accurate method to simultaneously measure the refractive indices of two transparent materials within an interference coating. This is achieved by…
Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors: A review of the state of the art
G. D. Cole, S. Ballmer, G. Billingsley +16
In this Perspective we summarize the status of technological development for large-area and low-noise substrate-transferred GaAs/AlGaAs (AlGaAs) crystalline coatings for interferom…
Simultaneous Measurement of Mid-Infrared Refractive Indices in Thin-Film Heterostructures: Methodology and Results for GaAs/AlGaAs
Lukas W. Perner, Gar-Wing Truong, David Follman +5
We present our results for simultaneous measurement of the refractive indices of gallium arsenide (GaAs) and aluminum gallium arsenide (AlGaAs) from $2.…
Mid-infrared supermirrors with finesse exceeding 400 000
G. -W. Truong, L. W. Perner, D. M. Bailey +9
For trace gas sensing and precision spectroscopy, optical cavities incorporating low-loss mirrors are indispensable for path length and optical intensity enhancement. Optical inter…
Mid-infrared monocrystalline interference coatings with excess optical loss below 10 ppm
G. Winkler, L. W. Perner, G. -W. Truong +13
We present high-reflectivity substrate-transferred single-crystal GaAs/AlGaAs interference coatings at a center wavelength of 4.54 um with record-low excess optical loss below 10 p…