Conference proceeding
Complex refractive index measurement of chalcogenide-based copolymers for infrared optics
Proceedings of SPIE, the international society for optical engineering, Vol.14034, pp.140340B-140340B-5
Proceedings of SPIE
06/11/2026
DOI: 10.1117/12.3103055
Abstract
Chalcogen-based copolymers potentiate a secure, domestic source of raw materials, such as Sulfur derived from petrochemical waste, that support infrared transparency viable for low-cost infrared optics. Purification of organic species in the fingerprint region from the copolymer towards high chalcogen concentrations is necessary to stretch infrared transmittance towards longer wavelengths. This work focuses on development of Fourier transform infrared (FTIR) spectroscopy-based techniques measure and extract broadband, complex refractive indices of these chalcogenide-rich copolymers and correlating the extinction coefficient, k, with specific molecular impurities.
Details
- Title: Subtitle
- Complex refractive index measurement of chalcogenide-based copolymers for infrared optics
- Creators
- Cory Stephenson - Naval Surface Warfare CenterJustin Offolter - Naval Surface Warfare CenterJonathan C. Koerber - Naval Surface Warfare CenterDarryl A. Boyd - United States Naval Research LaboratoryVinh Q. Nguyen - U.S. Naval Research Lab. (United States)Daniel J. Gibson - United States Naval Research LaboratoryThomas G. Folland - University of IowaGregory T. Forcherio - Naval Surface Warfare Center
- Contributors
- Peter L. Marasco (Editor) - Air Force Research Lab. (United States)Jay N. Vizgaitis (Editor) - optX Imaging Systems (United States)Daniel J. Gibson (Editor) - United States Naval Research Laboratory
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, the international society for optical engineering, Vol.14034, pp.140340B-140340B-5
- Series
- Proceedings of SPIE
- DOI
- 10.1117/12.3103055
- ISSN
- 0277-786X
- eISSN
- 1996-756X
- Publisher
- SPIE
- Grant note
- In-house Laboratory Independent Research (ILIR) program Naval Innovative Science and Engineering Section 219 (NISE 219) program
C. Stephenson, J. Offolter, and G.T. Forcherio acknowledge support from the In-house Laboratory Independent Research (ILIR) program administered at NSWC Crane. J.C. Koerber acknowledges support from the Naval Innovative Science and Engineering Section 219 (NISE 219) program. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, by the Department of War (DoW) or the U.S. Government.
- Language
- English
- Date published
- 06/11/2026
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9985180967802771
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