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Author:

Wang, Li (Wang, Li.) (Scholars:王丽) | Han, Xiuyou (Han, Xiuyou.)

Indexed by:

EI Scopus PKU CSCD

Abstract:

The theoretical model of type-I and type-II phase matching conditions for second harmonic generation, group velocity delay of fundamental and second harmonic, and limitation of nonlinear crystal matching length by group velocity mismatch was obtained by using energy conservation and three-wave coupled equations in optical parametric process of ultrashort pulses. The relation of the group velocity matching length of the harmonic and fundamental wavelength is analyzed by numerical simulation for a negative uniaxial crystal CsLiB6O10 with a 100 fs pulse. The maximum group velocity matching length of nonlinear crystal is 19.1 mm for fundamental wavelength 642 nm in type-I and 0.89 mm for fundamental wavelength 767 nm in type-II, which correspond to the minimum group velocity delay time.

Keyword:

Crystals Time delay Cesium compounds Harmonic generation Nonlinear optics Phase matching Velocity Wave equations Energy conservation Ultrashort pulses Wavelength Computer simulation Mathematical models

Author Community:

  • [ 1 ] [Wang, Li]College of Applied Sciences, Beijing University of Technology, Beijing 100022, China
  • [ 2 ] [Han, Xiuyou]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

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Source :

Acta Optica Sinica

ISSN: 0253-2239

Year: 2007

Issue: 2

Volume: 27

Page: 313-317

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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