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You searched on: Author: allan smith

Displaying records 11 to 17.
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11. Radiometer standard for absolute responsivity calibrations from 950 nm to 1650 nm with 0.05% (k = 2) uncertainty
Published: 6/2/2009
Authors: George P Eppeldauer, Howard W Yoon, Yuqin Zong, Thomas C Larason, Allan W. Smith, M. Racz
Abstract: A sphere-input transfer-standard detector has been developed to calibrate detectors and radiometers for absolute spectral power, irradiance, and radiance responsivity in the near-IR range with uncertainties similar to those of silicon trap-detector c ...

12. Supercontinuum Sources for Metrology
Published: 6/2/2009
Authors: John Taylor Woodward IV, Allan W. Smith, Colleen Alana Jenkins, Chungsan Lin, Steven W Brown, Keith R Lykke
Abstract: Supercontinuum (SC) sources are novel laser-based sources that generate a broad, white-light continuum in single mode photonic crystal fibers. Currently, up to 6 W of optical power is available, spanning the spectral range from 460 nm to 2500 nm. A ...

13. Low Background Temperature Calibration of Infrared Blackbodies
Published: 3/23/2006
Authors: Adriaan Carl Linus Carter, Raju Vsnu Datla, Timothy Michael Jung, Allan W. Smith, James A Fedchak
Abstract: The Low Background Infrared (LBIR) facility at the National Institute of Standards and Technology (NIST) has performed 10 calibrations of low-background blackbodies since 2001 when the calibration facility and calibration method for low-background bl ...

14. Low-background temperature calibration of infrared blackbodies
Published: 1/1/2006
Authors: Adriaan Carl Linus Carter, Raju Vsnu Datla, J A Fedchak, Timothy Michael Jung, Allan W. Smith

15. Improved Broadband Blackbody Calibrations at NIST for Low-Background Infrared Applications
Published: 2/1/2003
Authors: Adriaan Carl Linus Carter, Timothy Michael Jung, Allan W. Smith, Steven Ray Lorentz, Raju Vsnu Datla
Abstract: The Low Background Infrared (LBIR) facility at The National Institute of Standards and Technology (NIST) has continued to develop its facilities and knowledge base to meet the needs of the infrared community. Improvements in refrigeration capability ...

16. Radiometrically Deducing Aperture Sizes
Published: 2/1/2003
Authors: Allan W. Smith, Adriaan Carl Linus Carter, Steven Ray Lorentz, Timothy Michael Jung, Raju Vsnu Datla
Abstract: The desire for high-accuracy infrared sources suitable for low-background seeker/tracker calibrations pushes the limits of absolute cryogenic radiometry and blackbody design. It remains difficult to calibrate a blackbody at flux levels below 1 nW/cm ...

17. Theory of Collisions between Laser Cooled Atoms
Published: 1/1/1992
Authors: Paul S Julienne, Allan W. Smith, K Burnett

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