Display options
Cite
Burkhart JF, Jones RE. Effective absorptivity of a Lambertian cavity with a dielectric window. Appl Opt. 1980;19(1):148-50doi: 10.1364/AO.19.000148.
Burkhart, J. F., & Jones, R. E. (1980). Effective absorptivity of a Lambertian cavity with a dielectric window. Applied optics, 19(1), 148-50. https://doi.org/10.1364/AO.19.000148
Burkhart, J F, and Jones, R E. "Effective absorptivity of a Lambertian cavity with a dielectric window." Applied optics vol. 19,1 (1980): 148-50. doi: https://doi.org/10.1364/AO.19.000148
Burkhart JF, Jones RE. Effective absorptivity of a Lambertian cavity with a dielectric window. Appl Opt. 1980 Jan 01;19(1):148-50. doi: 10.1364/AO.19.000148. PMID: 20216809.
Copy Download .nbib Format: NLM
Share it on

Appl Opt. 1980 Jan 01;19(1):148-50. doi: 10.1364/AO.19.000148.

Effective absorptivity of a Lambertian cavity with a dielectric window.

Applied optics

J F Burkhart, R E Jones

PMID: 20216809 DOI: 10.1364/AO.19.000148

Abstract

The effective hemispherical absorptivity of a window in a cavity with Lambertian walls of absorptivity alpha is determined by considering the cavity to be at a uniform temperature and calculating the radiant energy escaping from the aperture when multiple internal reflections are considered. The window has an angularly independent transmissivity tau. The effective hemispherical absorptivity is found to be alpha(eff) = taualpha/{alpha[l - tau A(1)/(A(2) - A(1))] + tauA(1)/(A(2) - A)}, where A(1), the aperture area, is small compared with A(2), the area of the cavity including the aperture. The results can be used for determining the acceptance of solar radiation by direct-gain passive solar rooms.

Publication Types