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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 30 — Oct. 20, 2009
  • pp: 5842–5848

Whispering-gallery mode excitation in a microdroplet illuminated by a train of chirped ultrashort laser pulses

Yurii E. Geints, Alexander A. Zemlyanov, and Ekaterina K. Panina  »View Author Affiliations

Applied Optics, Vol. 48, Issue 30, pp. 5842-5848 (2009)

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The peculiarities of resonant optical field excitation inside a water microdroplet under illumination by a spatially bounded Gaussian beam with a temporal regime of a single chirped ultrashort laser pulse and a chirped pulse train are considered. It is established that the coupling efficiency of incident radiation to a selected high-Q whispering-gallery mode significantly depends on the interpulse interval in the train and chirping parameter of pumped laser radiation. The influence of the geometry of particle illumination by a laser beam and of the number of pulses in the train on the whispering-gallery mode buildup and its peak intensity is investigated.

© 2009 Optical Society of America

OCIS Codes
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.5650) Nonlinear optics : Raman effect
(190.5890) Nonlinear optics : Scattering, stimulated
(230.5750) Optical devices : Resonators

Original Manuscript: April 15, 2009
Revised Manuscript: September 23, 2009
Manuscript Accepted: September 23, 2009
Published: October 19, 2009

Yurii E. Geints, Alexander A. Zemlyanov, and Ekaterina K. Panina, "Whispering-gallery mode excitation in a microdroplet illuminated by a train of chirped ultrashort laser pulses," Appl. Opt. 48, 5842-5848 (2009)

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