Open AccessMicrowave optical double resonance spectroscopy of ammonia in a hollow-core fiber
Author(s) -
J. C. Petersen,
Jan Hald
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.007955
Subject(s) - spectroscopy , microwave , materials science , optics , resonance (particle physics) , excited state , optical fiber , core (optical fiber) , photonic crystal fiber , fiber , photonics , optoelectronics , atomic physics , physics , quantum mechanics , composite material
We have demonstrated microwave optical double resonance spectroscopy of the nu(1) + nu(3) and nu(1) + 2nu(4) bands of ammonia in a hollow-core photonic bandgap fiber. Signal strength and lineshapes are analyzed. Spectroscopic assignments of previously assigned lines and previously proposed assignments have been confirmed and new assignments have been made. Several microwave transitions in the excited vibrational states have been measured for the first time.