Relative intensity of a crossover resonance to lamb dips observed in stark spectroscopy of methane II

Permalink

https://hdl.handle.net/2142/100554

Title: Relative intensity of a crossover resonance to lamb dips observed in stark spectroscopy of methane II
Author(s): Okuda, Shoko
Contributor(s): Sasada, Hiroyuki
Issue Date: 2018-06-18
Keyword(s): Mini-symposium: Frequency-Comb Spectroscopy
Abstract: We carried out Stark-modulation spectroscopy of the ν3 band of methane [1]. Figure shows observed spectra of the P(4)E, Q(4)E, and R(4)E transitions with the selection rule of ∆M = ±1, where M is the angular momentum quantum number along the Stark filed. Each triplet includes two Lamb-dips from |M00| = 2 to |M0 | = 1 and from |M00| = 0 to |M0 | = 1 and a crossover resonance (COR) at the middle. The COR is the largest in intensity in the triplet for the Qand R-branch transitions, and middle for the P-branch transition. The COR of the Λ-type three-level system overlaps in frequency with that of the V-type three-level system of |M00| = 1 and |M0 | = 0 and 2, and the relative intensity of the COR to the Lamb dips is analyzed using a steady-state solution of rate equations. The model fairly agrees with the observed relative intensity, and detailed analysis is in progress. [1] S. Okuda, H. Sasada, J. Opt. Soc. Am. B, 34, 2558-2568 (2017).
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Language: eng
Permalink: http://hdl.handle.net/2142/100554
DOI: 10.15278/isms.2018.MG06