Frequency doubling in gallium–lanthanum–sulphide glass with surface crystallized Ga6La10/3S14 thin films
1998; American Institute of Physics; Volume: 73; Issue: 6 Linguagem: Inglês
10.1063/1.121985
ISSN1520-8842
AutoresYong Ding, Atsuhiro Kondoh, Yoshinari Miura, Tokuro Nanba,
Tópico(s)Optical and Acousto-Optic Technologies
ResumoThe reason for the optical frequency doubling in the 70Ga2S3–30La2S3 glass is investigated. The tetragonal Ga6La10/3S14 phase due to crystallization of the glass is responsible for the frequency doubling. Dense and transparent Ga6La10/3S14 crystalline thin films have been prepared by means of the controlled surface treatment of the glass due to an ultrasonic surface treatment. The effective second-order nonlinear optical susceptibilities of the crystalline thin films are analyzed.
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