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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 27 — Sep. 20, 2011
  • pp: 5291–5298

Angular diagram of broadband emission of millimeter-sized water droplets exposed to gigawatt femtosecond laser pulses

Yurii E. Geints, Alexander A. Zemlyanov, Andrey M. Kabanov, Elena E. Bykova, Dmitrii V. Apeksimov, Oleg A. Bukin, Ekaterina B. Sokolova, Sergey S. Golik, and Aleksey A. Ilyin  »View Author Affiliations


Applied Optics, Vol. 50, Issue 27, pp. 5291-5298 (2011)
http://dx.doi.org/10.1364/AO.50.005291


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Abstract

We report on the experiments on the interaction of gigawatt femtosecond laser pulses with suspended millimeter-sized water droplets. The transparent droplets experienced laser-induced breakdown and explosive boiling up and emitted a broadband radiation. This radiation covers the spectral range from 450 to 1100 nm and consists of the spectrum of laser pulse scattered and transformed by the droplet due to self-phase modulation and plasma emission produced in water during photoionization. The droplet emission spectrum showed remarkable broadening at all viewing angles and is maximal in the direction of the laser exit from the droplet. The enlargement of the droplet results in additional spectral spreading of the emitted radiation. The depth and amount of laser pulse spectral self-transformations upon propagation through the water droplet are simulated by means of numerical calculations.

© 2011 Optical Society of America

OCIS Codes
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(190.5940) Nonlinear optics : Self-action effects
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 28, 2011
Revised Manuscript: August 11, 2011
Manuscript Accepted: August 12, 2011
Published: September 15, 2011

Citation
Yurii E. Geints, Alexander A. Zemlyanov, Andrey M. Kabanov, Elena E. Bykova, Dmitrii V. Apeksimov, Oleg A. Bukin, Ekaterina B. Sokolova, Sergey S. Golik, and Aleksey A. Ilyin, "Angular diagram of broadband emission of millimeter-sized water droplets exposed to gigawatt femtosecond laser pulses," Appl. Opt. 50, 5291-5298 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-27-5291

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