3 papers
physics.chem-ph2025
Measurement and assignment of E-symmetry states in the 6010-6110 cm and 8940-9150 cm ranges of methane using optical frequency comb double-resonance spectroscopy
Adrian Hjältén, Vinicius Silva de Oliveira, Michael Rey +3
We use sub-Doppler optical-optical double-resonance (OODR) spectroscopy with a 3.3 m single-frequency pump and a cavity-enhanced 1.65 m comb probe to measure 33 ladder-type (…
physics.optics2025
Combined frequency comb and continuous wave cavity-enhanced optical-optical double-resonance spectrometer in the 1.7 m range
Vinicius Silva de Oliveira, Adrian Hjältén, Isak Silander +4
We present an optical-optical double-resonance (OODR) spectrometer based on a 3.3 m continuous wave pump and two cavity-enhanced probes: a frequency comb tunable in the 1.64 - 1…
physics.chem-ph2025
Assignment of collision-induced four-level double-resonance transitions in the 3 spectral region of methane
Kevin K. Lehmann, Isak Silander, Adrian Hjältén +2
Optical-optical double-resonance (OODR) spectroscopy using a narrow-linewidth pump and a frequency comb probe has previously been used to measure and assign sub-Doppler transitions…