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Ultraviolet to Short-Wave Infrared Spectral Reflectance
Published
Author(s)
Heather Patrick, Clarence Zarobila
Abstract
The National Institute of Standards and Technology performs calibrations of spectral reflectance measurements in the ultraviolet (UV) to short-wave infrared (SWIR) spectral regions using the Robotic Optical Scattering Instrument (ROSI) and its associated Reference Integrating Sphere (RIS). This special publication gives a comprehensive overview of the design, operation, and capabilities of this facility. Measurement methods for spectral reflectance, the elements of the uncertainty budget, and validation of the reflectance scale through comparison with NIST's previous reference instrument, the Spectral Tri-function Automated Reference Reflectometer (STARR), are described. Examples of calibration measurements, including specular reflectance of mirrors, bidirectional reflectance of diffuse reflectors, and directional-hemispherical reflectance, are given. Examples of typical calibration reports are also provided.
Patrick, H.
and Zarobila, C.
(2024),
Ultraviolet to Short-Wave Infrared Spectral Reflectance, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.SP.250-101 , https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956799
(Accessed November 13, 2024)