Sub-Doppler optical-optical double-resonance spectroscopy using a cavity-enhanced frequency comb probe

V Silva de Oliveira, I Silander, L Rutkowski… - Nature …, 2024 - nature.com
Accurate parameters of molecular hot-band transitions, ie, those starting from vibrationally
excited levels, are needed to accurately model high-temperature spectra in astrophysics and …

Dual-comb cavity ring-down spectroscopy

D Lisak, D Charczun, A Nishiyama, T Voumard… - Scientific reports, 2022 - nature.com
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 …

Sub-Doppler double-resonance spectroscopy of methane using a frequency comb probe

A Foltynowicz, L Rutkowski, I Silander… - Physical Review Letters, 2021 - APS
We report the first measurement of sub-Doppler molecular response using a frequency
comb by employing the comb as a probe in optical-optical double-resonance spectroscopy …

260 kHz mode-spacing optical frequency combs for scan-free high-resolution direct-comb spectroscopy

T Hasegawa - Optics Express, 2020 - opg.optica.org
For scan-free high-resolution direct-comb spectroscopy, mode spacing of an optical
frequency comb is reduced down to 260 kHz by phase modulation. It turns out that time …