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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 13 — Jun. 22, 2009
  • pp: 10506–10513

Predissociation dynamics of the B state of CH3I by femtosecond pump-probe technique

Yanmei Wang, Huan Shen, Linqiang Hua, Changjin Hu, and Bing Zhang  »View Author Affiliations

Optics Express, Vol. 17, Issue 13, pp. 10506-10513 (2009)

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The laser induced predissociation dynamics of the B Rydberg state of CH3I following two-photon absorption of a pump pulse was studied with femtosecond pump-probe photoelectron imaging coupled with time-resolved mass spectroscopy. The predissociation lifetime was measured to be 1.55 ps induced by the crossing between the B state and the repulsive A-band. Two possible predissociation channels were observed originating from (a) direct coupling between the B state and the repulsive 3Q0 state and (b) a second crossing between the 3Q0 and 1Q1 states after the coupling between the B and 3Q0 states, respectively.

© 2009 OSA

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics

ToC Category:
Atomic and Molecular Physics

Original Manuscript: April 21, 2009
Revised Manuscript: May 27, 2009
Manuscript Accepted: May 27, 2009
Published: June 8, 2009

Yanmei Wang, Huan Shen, Linqiang Hua, Changjin Hu, and Bing Zhang, "Predissociation dynamics of the B state of CH3I by femtosecond pump-probe technique," Opt. Express 17, 10506-10513 (2009)

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