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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
Subject(s):Mini-symposium: Frequency-Comb Spectroscopy
Abstract:We carried out Stark-modulation spectroscopy of the \nub{3} 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 $\Delta M$ = $\pm$1, where $M$ is the angular momentum quantum number along the Stark filed. Each triplet includes two Lamb-dips from $|M''|$ = 2 to $|M'|$ = 1 and from $|M''|$ = 0 to $|M'|$ = 1 and a crossover resonance (COR) at the middle. The COR is the largest in intensity in the triplet for the Q- and R-branch transitions, and middle for the P-branch transition. The COR of the $\Lambda$-type three-level system overlaps in frequency with that of the V-type three-level system of $|M''|$ = 1 and $|M'|$ = 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, {\bf 34}, 2558-2568 (2017). \begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.6]{fig.eps} \end{wrapfigure} \vspace{1.5in}
Issue Date:06/18/18
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/100554
DOI:10.15278/isms.2018.MG06
Other Identifier(s):MG06
Date Available in IDEALS:2018-08-17
2018-12-12


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