Visible And Ultraviolet Bandpass Filters

Edgar E. Barr

doi:10.1117/12.954108

1 March 1974 Visible And Ultraviolet Bandpass Filters

Edgar E. Barr

Proceedings Volume 0050, Optical Coatings: Applications and Utilization I; (1974) https://doi.org/10.1117/12.954108
Event: Acquisition and Analysis of Pictorial Data, 1974, San Diego, United States

Abstract

There are an increasing number of applications requiring the isolation of spectral bands ranging in width from less than 0.1 nm to greater than 50 nm. In general the interference filter is a simple device for performing this isolation function. Manufacturers providing these filters offer a broad choice of band position, band width, band shape, degree of off-band rejection and free filter range. It is the purpose of this paper, following an outline of the theory, to present the optical characteristics of visible and ultraviolet bandpass filters. Starting with the narrowest single cavity filter, the discussion progresses to multi-cavity designs with their improved passband shapes. Additional elements necessary to control the free filter range and the degree of rejection at wavelengths outside the passband are also considered. The presentation places emphasis on the performance of filters satisfying typical requirements such as the detection of an emission line in the presence of a strong continuum.

Citation Download Citation

Edgar E. Barr "Visible And Ultraviolet Bandpass Filters", Proc. SPIE 0050, Optical Coatings: Applications and Utilization I, (1 March 1974); https://doi.org/10.1117/12.954108

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