High-brightness sources of coherent and few-cycle-duration light waveforms with spectral
coverage from the ultraviolet to the terahertz would offer unprecedented versatility and …

The linear and nonlinear optical properties of BaGa_4S_7, BaGa_4Se_7, BaGa_2GeS_6,
and BaGa_2GeSe_6 are reviewed, highlighting their potential for frequency …

In recent decades, new nonlinear optical materials have been actively developed to create
coherent tunable light sources in the mid-infrared (mid-IR) part of the spectrum used in a …

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 …

We present a tunable (6.62-11.34 µm), singly-resonant, cascade optical parametric oscillator
with intracavity pumping of BaGa_2GeSe_6 in the second stage and spectral narrowing …

We demonstrate for the first time the generation of octave-spanning mid-infrared using a
BGSe nonlinear crystal. A Cr: ZnS laser system delivering 28-fs pulses at a central …

We demonstrate what we believe to be a new approach to energetic picosecond 10.2-µm
pulse generation based on nonlinear mixing of subnanosecond single-frequency 1338-nm …

We study and describe the reshaping of ultrashort and broadband mid-IR optical pulses in
an ambient atmosphere. While all pulse propagation undergoes dispersion and absorption …

The coefficients of nonlinear absorption and nonlinear refraction of the quaternary barium
chalcogenide crystal BaGa 2 GeSe 6 at a wavelength corresponding to half the band gap …

Barium chalcogenides for nonlinear optics in the mid-IR: Properties and applications -
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