Document Type

Article

Publication Date

11-18-2013

Abstract

Hemi-ellipsoidal mirrors are used in reflection-based measurements due to their ability to collect light scattered from one focal point at the other. In this paper, a radiometric model of this energy transfer is derived for arbitrary mirror and detector geometries. This model is used to examine the imaging characteristics of the mirror away from focus for both diffuse and specular light. The radiometric model is applied to several detector geometries for measuring the Directional Hemispherical Reflectance for both diffuse and specular samples. The angular absorption characteristics of the detector are then applied to the measurement to address measurement accuracy for diffuse and specular samples. Examining different detector configurations shows the effectiveness of flat detectors at angles ranging from normal to 50°, and that multifaceted detectors can function from normal incidence to grazing angles.

Comments

Publisher version of record at OSA: https://doi.org/10.1364/OE.21.027519

Found as: Benson, M. R., & Marciniak, M. A. (2013). Design considerations regarding ellipsoidal mirror based reflectometers. Optics Express, 21(23), 27519–27536. https://doi.org/10.1364/OE.21.027519

Posted on AFIT Scholar in accordance with Gold Open Access Policy Statement for Optics Express, found at: https://www.osapublishing.org/submit/review/open-access-policy-statement.cfm (12-month embargo).

DOI

10.1364/OE.21.027519

Source Publication

Optics Express

Included in

Optics Commons

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