A study on a production and processing technique for a GeSbSe aspheric lens with a mid-infrared wavelength band

• Published in: Journal of the Korean Physical Society Vol. 62; no. 11; pp. 1610 - 1615
• Main Authors: Bae, Dong-Sik, Yeo, Jong-Bin, Lee, Hyun-Yong
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.06.2013; 한국물리학회
• Subjects: Mathematical and Computational Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Theoretical; 물리학; Ge-Sb-Se; Diamond turning machining technology; Chalcogenide glass; Infrared lens
• ISSN: 0374-4884; 1976-8524
• DOI: 10.3938/jkps.62.1610

Chalcogenide glass has superior optical properties in term of its transmittance in the infrared (IR) region transmittance. We have determined the composite formular of Ge 0.19 Sb 0.23 Se 0.58 to be the GeSbSe chalcogenide glass composition appropriate for IR lenses. The optical, structural, thermal and physical properties of the compound were measured by using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential scanning calorimeter (DSC), and X-ray computed tomography (X-ray CT) respectively. We recommend that a chalcogenide glass lens for infrared optics applications be fabricated by using diamond turning machining technology in order to lower the production cost and to provide accurate control over the fabrication process.