Scatter-based interpretation of infrared stray light from warm windows in optical instruments

Riad Haïdar; Sylvain B. Maine; Nicolas Guérineau; Jérôme Primot

doi:10.1117/1.2395927

1 November 2006 Scatter-based interpretation of infrared stray light from warm windows in optical instruments

Riad Haïdar, Sylvain B. Maine, Nicolas Guérineau, Jérôme Primot

Author Affiliations +

Optical Engineering, Vol. 45, Issue 11, 116402 (November 2006). https://doi.org/10.1117/1.2395927

Abstract

We propose a novel interpretation of stray light, which is modeled using a scattering process. For this, a description and simulations based on the bidirectional scattering distribution function (BSDF) are developed. We focus on the particular example of a window closing an optical cavity. Such a window is known to introduce a stray light component that is experimentally very subtle to handle. Our idea is motivated by the uncomfortable observation that for years, the usual estimation of this parasitic contribution (be it for absolute or relative measurements, for visible or IR applications, for field or laboratory experiments, etc.) was based on the rather imprecise and obviously incorrect assumption (nevertheless today a widely used rule of thumb) that the optical window can be approximated by a graybody emitting in its transparency range. This statement obviously goes against Kirchhoff's law of radiation, and can thus not be physically sound. Various typical experimental situations are explored with our model, and a comparison is made with results given by the rule of thumb. This shows some cases of relative concordance. However, the scatter-based model should provide an individually more accurate estimation, as shown by some examples.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Riad Haïdar, Sylvain B. Maine, Nicolas Guérineau, and Jérôme Primot "Scatter-based interpretation of infrared stray light from warm windows in optical instruments," Optical Engineering 45(11), 116402 (1 November 2006). https://doi.org/10.1117/1.2395927

Published: 1 November 2006

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $24.00

Non-members: $28.00 ADD TO CART

JOURNAL ARTICLE
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Stray light

Light scattering

Scattering

Sensors

Infrared radiation

Transmittance

Pollution

Show All Keywords

Keywords/Phrases

Search In:

Publication Years