Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Published

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

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 December 8, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created June 2, 2009, Updated February 19, 2017