Photoinduced changes in optical properties of Ga-Sb-Ge-Se glasses

被引：24
|
作者：
Tintu, R. [1 ,2 ]
Nampoori, V. P. N. [1 ]
Radhakrishnan, P. [1 ,2 ]
Thomas, Sheenu [2 ]
机构：
[1] Cochin Univ Sci & Technol, Int Sch Photon, Cochin 682016, Kerala, India
[2] Cochin Univ Sci & Technol, Ctr Excellence Lasers & Optoelect Sci, Cochin 682016, Kerala, India
来源：
OPTICS COMMUNICATIONS | 2011年 / 284卷 / 01期
关键词：
Semiconductors; Thin films; Chalcogenide glass; Optical materials and properties; FILMS;
D O I：
10.1016/j.optcom.2010.08.047
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The kinetics of photoinduced effects on Ga5Sb10Ge25Se60 thin film exposed to continuous wave laser radiations are studied as a function of exposure time and laser intensity. The transmission and reflection spectra of thin films before and after exposure are investigated. The optical band gap and the refractive index are derived from the above spectra. Generalized Miller's rule and linear refractive index are used to find the nonlinear susceptibility and nonlinear refractive index of the thin films. The studies show a red shift in the band gap with increase in exposure time and laser power which is attributed to the photoinduced darkening in the films. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：222 / 225
页数：4
相关论文
共 50 条
  • [1] Nonlinear optical studies on nanocolloidal Ga-Sb-Ge-Se chalcogenide glass
    Tintu, R.
    Nampoori, V. P. N.
    Radhakrishnan, P.
    Thomas, Sheenu
    [J]. JOURNAL OF APPLIED PHYSICS, 2010, 108 (07)
  • [2] Thermal and optical properties of the Ga-Ge-Sb-Se glasses
    Zhang, XH
    Ma, HL
    Adam, JL
    Lucas, J
    Chen, GR
    Zhao, DH
    [J]. MATERIALS RESEARCH BULLETIN, 2005, 40 (10) : 1816 - 1821
  • [3] Nonlinear optical properties of glasses in the system Ge/Ga-Sb-S/Se
    Petit, L
    Carlie, N
    Richardson, K
    Humeau, A
    Cherukulappurath, S
    Boudebs, G
    [J]. OPTICS LETTERS, 2006, 31 (10) : 1495 - 1497
  • [4] Influence of the Ga addition on optical properties of Pr in Ge-Sb-Se glasses
    Kim, Jung Kyun
    Jin, Byeong Kyou
    Chung, Woon Jin
    Park, Bong Je
    Heo, Jong
    Choi, Yong Gyu
    [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2011, 72 (11) : 1386 - 1389
  • [5] Physicochemical and optical properties of glasses in the Ga4Ge21Se50-Sb2Se3 system
    Tverjanovich, A. S.
    Tereshchenko, E. V.
    [J]. GLASS PHYSICS AND CHEMISTRY, 2010, 36 (03) : 309 - 312
  • [6] Physicochemical and optical properties of glasses in the Ga4Ge21Se50-Sb2Se3 system
    A. S. Tverjanovich
    E. V. Tereshchenko
    [J]. Glass Physics and Chemistry, 2010, 36 : 309 - 312
  • [7] Compositional dependence of the optical properties of the Ge-Se-Ga glasses
    Nedeva, Y
    Petkova, T
    Mytilineou, E
    Petkov, P
    [J]. JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2001, 3 (02): : 433 - 436
  • [8] Optical and thermal properties of Sb/Bi-modified mixed Ge-Ga-Se-Te glasses
    [J]. Shpotyuk, Ya (yashpotyuk@gmail.com), 1600, Elsevier Ltd (750):
  • [9] Optical and thermal properties of Sb/Bi-modified mixed Ge-Ga-Se-Te glasses
    Golovchak, R.
    Kozdras, A.
    Hodge, T.
    Szlezak, J.
    Boussard-Pledel, C.
    Shpotyuk, Ya
    Bureau, B.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 750 : 721 - 728
  • [10] Chemical order in Ge-Ga-Sb-Se glasses
    Pethes, I.
    Chahal, R.
    Nazabal, V.
    Prestipino, C.
    Michalik, S.
    Darpentigny, J.
    Jovari, P.
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 2018, 484 : 49 - 56
12345