Two-photon absorption in CdGa2S4 and CdGa2S3.96Se0.04 crystals

被引:6
作者
Allakhverdiev, KR
Salaeva, ZY
Orun, AB
机构
[1] TUBITAK, Inst Elect, TR-41470 Gebze, Kocaeli, Turkey
[2] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan
[3] TUBITAK, MAM, Informat Technol Res Inst, BTAE, TR-41470 Gebze, Kocaeli, Turkey
关键词
D O I
10.1016/S0030-4018(99)00279-5
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Two-photon absorption (TPA) measurements have been carried out in the chalcopyrite compounds CdGa2S4, CdGa2S3.96 Se-0.04 using single-wavelength excitation by a dye laser with lambda = 581 and 600 nm and pulse duration of 35 ps. Non-linear absorption coefficient for direct interband transitions has been measured in both crystals for E perpendicular to c and E parallel to c geometries by the non-linear transmittance method, TPA coefficients were found to be beta(perpendicular to) = (8.0 +/- 0.3) x 10(-9) cm/W, beta(parallel to) = (1.1 +/- 0.2) x 10(-8) cm/W and beta(perpendicular to) = (8.4 +/- 0.7) x 10(-9) cm/W, beta(parallel to) = (1.1 +/- 0.2) x 10(-8) cm/W for CdGa2S4 and CdGa2S3.96 Se-0.04 respectively. The experimental results are compared with the existing data for other chalcopyrite compounds. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:95 / 98
页数:4
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