Compact interference-filter polychromator and narrow band rejection filter
Abstract
Schematic diagrams are presented of a compact line rejection filter and of a three-channel interference-filter polychromator. In these new arrangements, the angle of incidence is zero, while the size of the devices is greatly reduced and constraints on the alignment are significantly reduced. Results are presented of calibration measurements on a two-channel polychromator test setup using mica quarter-wave plates and a pair of 30-A bandpass filters with peak transmissions at 6910 and 7000 A.
- Publication:
-
Applied Optics
- Pub Date:
- July 1977
- DOI:
- 10.1364/AO.16.001765
- Bibcode:
- 1977ApOpt..16.1765M
- Keywords:
-
- Bandpass Filters;
- Frequency Response;
- Interference Grating;
- Light Transmission;
- Optical Filters;
- Calibrating;
- Dielectrics;
- Electromagnetic Interference;
- Optical Polarization;
- Spectral Bands;
- Transmission Efficiency;
- Instrumentation and Photography;
- SCATTERING;
- SPECTROMETERS;
- INTERFEROMETRY