Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T20:34:07.744Z Has data issue: false hasContentIssue false
  • English
  • Français

Development of thermally stable and moldable chalcogenide glass for flexible infrared lenses

Published online by Cambridge University Press:  30 May 2016

Ju Hyeon Choi ,
Du-Hwan Cha ,
Jeong-Ho Kim  and
Hye-Jeong Kim
Ju Hyeon Choi
Affiliation:
Ultra-Precision Optics Research Center, Korea Photonics Technology Institute (KOPTI), Chumdanbencheo-ro 108 beon-gil 9(WolChul-Dong), Buk-gu, Gwangju 500-779, South Korea
Du-Hwan Cha
Affiliation:
Ultra-Precision Optics Research Center, Korea Photonics Technology Institute (KOPTI), Chumdanbencheo-ro 108 beon-gil 9(WolChul-Dong), Buk-gu, Gwangju 500-779, South Korea
Jeong-Ho Kim
Affiliation:
Ultra-Precision Optics Research Center, Korea Photonics Technology Institute (KOPTI), Chumdanbencheo-ro 108 beon-gil 9(WolChul-Dong), Buk-gu, Gwangju 500-779, South Korea
Hye-Jeong Kim*
Affiliation:
Ultra-Precision Optics Research Center, Korea Photonics Technology Institute (KOPTI), Chumdanbencheo-ro 108 beon-gil 9(WolChul-Dong), Buk-gu, Gwangju 500-779, South Korea
*
a)Address all correspondence to this author. e-mail: kimhj@kopti.re.kr
Get access

Abstract

In this study, the ternary Ge–Sb–Se chalcogenide glass was fabricated by a standard melt-quenching technique for flexible infrared lenses. Chalcogenide glass should have unique thermal and mechanical properties to be applied to precision glass molding (PGM) process. Therefore, the relations between thermal properties and the moldability were investigated for (35–20)Ge–(5–20)Sb–60Se glass systems. The thermal and thermos-mechanical properties were characterized by the differential scanning calorimeter and thermos-mechanical analysis, respectively. Preceding experiments using a pressing tester were conducted before PGM process to evaluate the moldability. The surface condition of both chalcogenide glass disks and Tungsten Carbide (WC) molds were characterized by using an optical microscopy and an interferometer. The preferential compositions in (35–20)Ge–(5–20)Sb–60Se glass systems were selected to produce molded lenses. Finally, the molded chalcogenide lens was successfully fabricated using the preferential compositions and the processing conditions from the preceding experiments using a pressing tester.

Keywords

Ge–Sb–Se chalcogenide glasshigh thermal stabilityprecision glass molding
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 12 , 28 June 2016 , pp. 1674 - 1680
Check for updates
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Cha, D.H., Kim, H.J., Hwang, Y., Jeong, J.C., and Kim, J.H.: Fabrication of molded chalcogenide-glass lens for thermal imaging applications. Appl. Opt. 51, 5649 (2012).CrossRefGoogle ScholarPubMed
Cha, D.H., Kim, H.J., Park, H.S., Hwang, Y., Kim, J.H., Hong, J.H., and Lee, K.S.: Effect of temperature on the molding of chalcogenide glass lenses for infrared imaging applications. Appl. Opt. 49, 1607 (2010).CrossRefGoogle ScholarPubMed
Choi, J.H., Cha, D.H., Kang, H.Y., Kim, J.H., and Kim, H.J.: Development of chalcogenide glass with thermal stability for molded infrared lens. Proc. SPIE 8982, 89821U (2014).Google Scholar
Savage, J.A.: Infrared Optical Materials and Their Anti Reflection Coatings, Vol. 32 (Adam Hilger, Bristol, 1985); p. 1442.Google Scholar
Abdel-Rahim, M.A., Moharram, A.H., Dongol, M., and Hafiz, M.M.: Experimental studies of the Ge–Sb–Se system. J. Phys. Chem. Solids 51, 355 (1990).CrossRefGoogle Scholar
Zhang, S.N., He, J., Zhu, T.J., Zhao, X.B., and Tritt, T.M.: Thermal conductivity and specific heat of bulk amorphous chalcogenides Ge20Te80−xSex (x = 0, 1, 2, 8). J. Non-Cryst. Solids 355, 79 (2009).CrossRefGoogle Scholar
Farid, A.M., Fouad, S.S., and Ammar, A.H.: The structural properties of GexSb40−xSe60 system. J. Mater. Sci.: Mater. Electron. 16, 97 (2005).CrossRefGoogle Scholar
Wei, W.H., Fang, L., Shen, X., and Wang, R.P.: Crystallization kinetics and thermal stability in Ge–Sb–Se glasses. Phys. Status Solidi B 250, 59 (2013).CrossRefGoogle Scholar
Ivanova, Z.G. and Cernoskova, E.: Study on glass transition and crystallization kinetics of GexSb40−xSe60 glasses by differential thermal analysis. Thermochim. Acta 411, 177 (2004).CrossRefGoogle Scholar
Schott: TIE-19: Temperature coefficient of the refractive index. In Proceedings of Schott Technical Information, Schott Inc.: Germany, 2008.Google Scholar
Lloyd, J.M.: Thermal Imaging Systems (Plenum, New York, 1975); p. 257.CrossRefGoogle Scholar
Micoulaut, M. and Naumis, G.G.: Glass transition temperature variation, cross-linking and structure in network glasses: A stochastic approach. Europhys. Lett. 47, 568 (1999).CrossRefGoogle Scholar
Mamedov, S., Georgiev, D.G., Qu, T., and Boolch, P.: Evidence for nanoscale phase separation of stressed-rigid glasses. J. Phys.: Condens. Matter 15, S2397–S2411 (2003).Google Scholar
Myuller, R.L.: Solid state chemistry, Borisova, Z.U. ed.; Consultants' Bureau: New York, 1966.Google Scholar