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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 15, Iss. 9 — Apr. 30, 2007
  • pp: 5782–5788

Supercontinuum assisted trapped electron accumulation in titanium oxide gel by femtosecond laser pulses

A. I. Kuznetsov, A. Kanaev, and N. Bityurin  »View Author Affiliations


Optics Express, Vol. 15, Issue 9, pp. 5782-5788 (2007)
http://dx.doi.org/10.1364/OE.15.005782


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Abstract

Long-lived trapped electrons are generated in titanium oxide gels in a convergent part of a loosely focused beam from a millijoule, femtosecond Ti:Sapphire laser. The appearance of trapped electrons is accompanied by the generation of the white supercontinuum. Considering the relevant physical mechanisms of trapped electron accumulation, we show that two-photon interband transitions with participation of photons at the fundamental frequency and from the blue part of the supercontinuum explain the experimental findings.

© 2007 Optical Society of America

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

History
Original Manuscript: February 8, 2007
Revised Manuscript: March 23, 2007
Manuscript Accepted: April 22, 2007
Published: April 26, 2007

Citation
A. I. Kuznetsov, A. Kanaev, and N. Bityurin, "Supercontinuum assisted trapped electron accumulation in titanium oxide gel by femtosecond laser pulses," Opt. Express 15, 5782-5788 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-9-5782


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