Scanning methods for the characterization of infrared glasses

Alfred Reichmann; Stefan Heinemann; Barbara Luedge; K. Rudolph; Dieter Wostl

doi:10.1117/12.34879

1 July 1990 Scanning methods for the characterization of infrared glasses

Alfred Reichmann, Stefan Heinemann, Barbara Luedge, K. Rudolph, Dieter Wostl

Proceedings Volume 1319, Optics in Complex Systems; (1990) https://doi.org/10.1117/12.34879
Event: 15th International Optics in Complex Systems, 1990, Garmisch, Germany

Abstract

For the characterization of infrared optical materials the homogeneity of refractive index and the residual stress-birefringence distribution are important parameters. The measurements of such properties of larger samples using large aperture optical systems in connection with infrared cameras result in an enhanced equipment, especially with respect to beam splitters and polarizing components. A concept to avoid this difficulties is the scanning method, where the sample is mounted on a table allowing the automatic translation by computer controlled stepper motors, while the beam has been fixed. The radiation of either a HeNe laser (3.39 pm) or a C02 laser (10.6 pm) is usually detected by sensitive thermocouples. Although, the data processing in the following measuring methods is nearly the same , the optical arrangement is quite different.

Citation Download Citation

Alfred Reichmann, Stefan Heinemann, Barbara Luedge, K. Rudolph, and Dieter Wostl "Scanning methods for the characterization of infrared glasses", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); https://doi.org/10.1117/12.34879

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