Tunable femtosecond frequency doubling in random domain structure of strontium tetraborate

Efficient tunable femtosecond phase-matched noncollinear second-harmonic generation in randomized nonlinear photonic crystal of strontium tetraborate is obtained. Spatial spectrum of nonlinear photonic structure is not flat but enables tuning of the harmonic frequency in the range from 355 to 460nm....

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Published inOptics communications Vol. 282; no. 11; pp. 2263 - 2266
Main Authors Aleksandrovsky, A.S., Vyunishev, A.M., Slabko, V.V., Zaitsev, A.I., Zamkov, A.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2009
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Summary:Efficient tunable femtosecond phase-matched noncollinear second-harmonic generation in randomized nonlinear photonic crystal of strontium tetraborate is obtained. Spatial spectrum of nonlinear photonic structure is not flat but enables tuning of the harmonic frequency in the range from 355 to 460nm. The narrowing of the bandwidth of second harmonic is found to be of order of 10–20%.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2009.02.070