Absolute Cryogenic Radiometer and Solid State Trap Detectors for IR Power Scales Down to 1 pW with 0.1% Uncertainty

Published

June 2, 2009

Author(s)

Adriaan C. Carter, Solomon I. Woods, Stephen Carr, Timothy M. Jung, Raju V. Datla

Abstract

Commercially available Absolute Cryogenic Radiometers (ACRs) have combined uncertainties that grow rapidly above 1% at power levels below 10 nW. There are solid state detectors, however, used in sensors and radiometers that cannot be calibrated at levels as high as 10 nW because they begin to saturate. For this reason new detector-based standards are being developed to provide the low-background infrared calibration community with absolute traceability to powers down to 1 pW with ~0.1% combined uncertainty. The scale will be established using an ACR with a combined uncertainty on the order of 1 fW and a trap detector based on arsenic-doped silicon blocked impurity band devices with similar noise floor performance.

Proceedings Title

NEWRAD 2008

Volume

46

Issue

4

Conference Dates

October 13-16, 2008

Conference Location

Daejon, KR

Pub Type

Conferences

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Keywords

absolute cryogenic radiometer, blocked impurity band detector, IR radiometry, low power calibration, trap detector

Citation

Carter, A. , Woods, S. , Carr, S. , Jung, T. and Datla, R. (2009), Absolute Cryogenic Radiometer and Solid State Trap Detectors for IR Power Scales Down to 1 pW with 0.1% Uncertainty, NEWRAD 2008, Daejon, KR, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=900204 (Accessed October 30, 2025)