A modular interferometer for dispersive reflectivity measurements on highly absorbing solids
Abstract
A modular interferometer is described that has been used for dispersive Fourier transform determinations of the complex Fresnel reflectivities of absorbing solids from 5 to 450 cm -1 at ambient temperature. The interferometer is used in a mode of operation that eliminates the effects both of backlash in the moving mirror drive and of differential thermal expansion between the two arms of the interferometer. Typical results, on the lattice mode of cadmium telluride, are presented.
- Publication:
-
Infrared Physics
- Pub Date:
- July 1978
- DOI:
- Bibcode:
- 1978InfPh..18..283B
- Keywords:
-
- Cadmium Tellurides;
- Fourier Transformation;
- Fresnel Reflectors;
- Interferometers;
- Microwave Attenuation;
- Spectral Reflectance;
- Complex Variables;
- Crystal Lattices;
- Modules;
- Opacity;
- Permittivity;
- Solid Surfaces;
- Thermal Expansion;
- Instrumentation and Photography