Refractive index measurements of amtir-1 at cryogenic temperatures

Michael J. Nofziger, William L. Wolfe

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The refractive index of an infrared transmitting glass, AMTIR-1, has been measured at infrared wavelengths and cryogenic temperatures. Experimental data are presented for wave-lengths of 7-12 micrometers (pm) and for temperatures of 170-350K. The change in index with temperature, dn/dT, was determined as well. An overall accuracy in index of five parts in the fourth decimal place was achieved. In addition to results, the equipment, measurement procedures, and error estimates are also described.

Original languageEnglish (US)
Pages (from-to)118-126
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 26 1984

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Refractive index measurements of amtir-1 at cryogenic temperatures'. Together they form a unique fingerprint.

Cite this