The extension of the NIST BRDF scale from 1100 nm to 2500 nm

Howard W. Yoon; David W. Allen; George P. Eppeldauer; Benjamin K. Tsai

doi:10.1117/12.827293

21 August 2009 The extension of the NIST BRDF scale from 1100 nm to 2500 nm

Howard W. Yoon, David W. Allen, George P. Eppeldauer, Benjamin K. Tsai

Proceedings Volume 7452, Earth Observing Systems XIV; 745204 (2009) https://doi.org/10.1117/12.827293
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Measurements of bi-directional reflectance factor for diffuse reflectance from 1100 nm to 2500 nm using extended-range indium gallium arsenide (exInGaAs) detectors in the NIST Spectral Tri-function Automated Reference Reflectometer (STARR) facility are described. The determination of bi-directional reflectance factor with low uncertainties requires the exInGaAs radiometer to be characterized for low-noise performance, linearity and spatial uniformity. The instrument characterizations will be used to establish a total uncertainty budget for the reflectance factor. To independently check the bi-directional reflectance factors, measurements also were made in a separate facility in which the reflectance factor is determined using calibrated spectral irradiance and radiance standards. The total combined uncertainties for the diffuse reflectances range from < 1 % at 1100 nm to 2.5 % at 2500 nm. At NIST, these measurement capabilities will evolve into a calibration service for diffuse spectral reflectance in this wavelength region.

Citation Download Citation

Howard W. Yoon, David W. Allen, George P. Eppeldauer, and Benjamin K. Tsai "The extension of the NIST BRDF scale from 1100 nm to 2500 nm", Proc. SPIE 7452, Earth Observing Systems XIV, 745204 (21 August 2009); https://doi.org/10.1117/12.827293

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