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  Multi-resonance effects within a single chirp in broadband rotational spectroscopy: The rapid adiabatic passage regime for benzonitrile

Schmitz, D., Shubert, V. A., Betz, T., & Schnell, M. (2012). Multi-resonance effects within a single chirp in broadband rotational spectroscopy: The rapid adiabatic passage regime for benzonitrile. Journal of Molecular Spectroscopy, 280, 77-84. doi:10.1016/j.jms.2012.08.001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-DBE0-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-DBE1-C
Genre: Journal Article

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http://dx.doi.org/10.1016/j.jms.2012.08.001 (Publisher version)
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 Creators:
Schmitz, David1, 2, 3, Author              
Shubert, V. Alvin1, 3, Author
Betz, Thomas1, 3, Author
Schnell, Melanie1, 3, Author              
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Societ, ou_904547              
2International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266714              
3Center for Free-Electron Laser Science, Notkestrasse 85, 22607 Hamburg, Germany, ou_persistent22              

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Free keywords: Broadband rotational spectroscopy; Double resonance; Chirped pulse; Rapid-adiabatic passage
 Abstract: We report here pronounced, stepwise multi-resonance excitations in benzonitrile arising from a single 1 μs broadband 2–8.3 GHz microwave chirp, observed with our new chirped-pulse broadband rotational spectrometer, COMPACT. Such multi-resonance excitations significantly alter the relative intensity patterns and are a strong indication that, for the given experimental conditions and using benzonitrile as a polar test molecule (μA = 4.5152 D), the rapid adiabatic passage (RAP) regime for strong coupling must be applied. This finding is contrary to previous discussions of chirped-pulse rotational spectroscopy, where the linear fast passage regime of weak coupling has been assumed.

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Language(s): eng - English
 Dates: 2012-102012-08-142012-10
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.jms.2012.08.001
 Degree: -

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Title: Journal of Molecular Spectroscopy
  Other : JMS
Source Genre: Journal
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Publ. Info: San Diego [etc.] : Academic Press
Pages: - Volume / Issue: 280 Sequence Number: - Start / End Page: 77 - 84 Identifier: ISSN: 0022-2852
CoNE: /journals/resource/954922646043