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Preparation and properties of novel GeS2-Ga(In)2S3-CuI chalcohalide glasses

X. ZHENG1,* , F. CHEN2, H. TAO1, H. GUO3, C. LIN2, S. GU1, X. ZHAO1

Affiliation

  1. Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, China, 122 Luoshi Road, Hongshan District, Wuhan, Hubei 430070, P.R. China
  2. College of Information Science and Engineering, Ningbo University, Ningbo 315211, PR China.
  3. State Key Laboratory of Transient Optics and Photonic, Xi’an Institute of Optics and precision Mechanics, Chinese Academy of Science (CAS), Xi’an, Shanxi 710119, PR China.

Abstract

Novel GeS2-Ga(In)2S3-CuI chalcohalide glasses were prepared successfully. These glasses have relatively high glass transition temperatures up to 452 o C but narrow glass-forming region, and a wide range of transmission approximately from 0.50 to 12.5µm. The structural evolvement of the glasses was studied by Raman spectroscopy. Finally, third-order optical nonlinearities were investigated utilizing Z-scan technique at the wavelength of 800nm. Both nonlinear refractive index n2 and nonlinear absorption coefficient β show an increasing tendency with increasing CuI content or substituting In for Ga, and structural dependency of n2 has also been discussed. A minimum figure of merit FOM = 2.237 was obtained.

Keywords

Chalcohalide glasses, Raman spectroscopy, Z-scan, Nonlinear optics.

Submitted at: Jan. 17, 2011
Accepted at: Jan. 26, 2011

Citation

X. ZHENG, F. CHEN, H. TAO, H. GUO, C. LIN, S. GU, X. ZHAO, Preparation and properties of novel GeS2-Ga(In)2S3-CuI chalcohalide glasses, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 1, pp. 24-31 (2011)