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Joined 2026-09-21 Message
Incoming links: Thomas C. Larason
Spectroradiometric Detector Measurements: Ultraviolet, Visible, and Near-Infrared Detectors for Spectral Power by Thomas C. Larason and others Created 2026-10-13 Updated 2026-11-05
Publisher: National Institute of Standards and Technology.
Cited passages: Thomas C. Larason and Jeanne M. Houston, NIST SP 250-41 (2008), §§3.2, 4.2 and 7.2: apparatus, readouts and controls.
Additional verified locator in the existing2008edition nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication250-41e2008.pdf : §9.1, printed pp85–86 (PDF pages97–98),633nm linearity comparison and Figure9.2. The method uses a beam splitter and two photodiodes at about10:1 intensity, with a uniformly filled aperture; the report states geometry dependence.
Thomas C. Larason Created 2026-10-13 Updated 2026-11-05
A researcher in optical measurement whose work with Jeanne M. Houston establishes detector spectral responsivity. A detector’s electrical signal is compared with a calibrated reference while the illumination wavelength is varied; subtracting dark current and monitoring source changes separates optical response from instrumental offsets. The resulting calibration converts a measured current into optical power, with an explicit dependence on wavelength rather than a single sensitivity number.[ref]
Spectroradiometric Detector Measurements: Ultraviolet, Visible, and Near-Infrared Detectors for Spectral Power by Thomas C. Larason and others. §§3.2, 4.2 and 7.2: detector-comparison apparatus, spectral readout and measurement controls
Portrait of Thomas C. Larason
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