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Absolute optical calibrations using a simple tungsten bulb: Theory

Research output: Contribution to conference - Without ISBN/ISSN Other

Published
Publication date08/2001
Number of pages3
Pages121-123
<mark>Original language</mark>English
Event28th Annual European Meeting on Atmospheric Studies by Optical Methods -
Duration: 1/01/1900 → …

Conference

Conference28th Annual European Meeting on Atmospheric Studies by Optical Methods
Period1/01/00 → …

Abstract

The absolute spectral intensity calibration of optical detectors has always been difficult. In the past, this was only possible using expensive sources, which had been cross-calibrated against national standards. We describe a simple theoretical approach to absolute optical calibrations using any ordinary Tungsten light bulb. A key element of the theory is transforming Tungsten into an equivalent black body radiator. This permits direct application of Stefan- Boltzmann’s and Planck’s formulas of radiation.