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1. Absolute Cryogenic Radiometer and Solid State Trap Detectors for IR Power Scales Down to 1 pW with 0.1% Uncertainty
Published: 6/2/2009
Authors: Adriaan Carl Linus Carter, Solomon I Woods, Stephen Carr, Timothy Michael Jung, Raju Vsnu 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 l ...

2. Analysis of the Noise Spectra from Oxidized Superparamagnetic Nanoparticles
Published: 8/18/2014
Authors: Solomon I Woods, Snorri Ingvarsson, Shouheng Sun, John Kirtley
Abstract: Expressions for the thermal noise from a collection of exchange-biased magnetic nanoparticles are derived and used to analyze the magnetic noise from thin films of partially oxidized nanoparticles. Functionalized Co nanoparticles with diameters betw ...

3. Broadband Emissivity Calibration of Highly Reflective Samples at Cryogenic Temperatures
Published: 10/15/2012
Authors: Solomon I Woods, Timothy M. Jung, Greg Ly, Simon Grant Kaplan, Jie Yu
Abstract: We have developed a technique for calibrating the broadband optical emissivity of high reflectivity samples at cryogenic temperatures. This measurement method employs a primary standard optical detector with high absorptance from visible wavelengths ...

4. Calibration and Deployment of a New NIST Transfer Radiometer for Broadband and Spectral Calibration of Space Chambers (MDXR)
Published: 9/30/2011
Authors: Timothy M. Jung, Adriaan C. Carter, Solomon I Woods, Simon Grant Kaplan
Abstract: The Low-Background Infrared (LBIR) facility at NIST has performed on-site calibration and initial off-site deployments of a new infrared transfer radiometer with an integrated cryogenic Fourier transform spectrometer (Cryo-FTS). This mobile radi ...

5. Calibration of IR Test Chambers with the Missile Defense Transfer Radiometer
Published: 9/30/2013
Authors: Simon Grant Kaplan, Solomon I Woods, Adriaan Carl Linus Carter, Timothy Michael Jung
Abstract: The Missile Defense Transfer Radiometer (MDXR) is designed to calibrate infrared collimated and flood sources over the fW/cm2 to W/cm2 power range from 3 m to 28 m in wavelength. The MDXR operates in three different modes ...

6. Calibration of Ultra-Low Infrared Power at NIST
Published: 7/20/2010
Authors: Solomon I Woods, Stephen M. Carr, Adriaan C. Carter, Timothy M. Jung, Simon Grant Kaplan, Raju Vsnu Datla
Abstract: The Low Background Infrared (LBIR) facility has developed and tested the components of a new detector for calibration of infrared powers down to 1 pW, with 0.1% uncertainty. Calibration of such low powers could be valuable for the quantitative study ...

7. Characterization of the Optical Properties of an Infrared Blocked Impurity Band Detector
Published: 8/20/2011
Authors: Solomon I Woods, Simon Grant Kaplan, Timothy M. Jung, Adriaan C. Carter
Abstract: Si:As blocked impurity band detectors have been partially deprocessed and measured by Fourier transform spectroscopy to determine their transmittance and reflectance at cryogenic temperatures over the wavelength range 2 µm to 40 µm. The effective pr ...

8. Cryogenic Fourier Transform Infrared Spectrometer from 4 to 20 Micrometers
Published: 8/20/2010
Authors: Simon Grant Kaplan, Solomon I Woods, Timothy M. Jung, Adriaan C. Carter
Abstract: We describe the design and performance of a cryogenic Fourier transform spectrometer (Cryo-FTS) operating at a temperature of approximately 15 K. The instrument is based on a porch-swing scanning mirror design with active alignment stabilization usi ...

9. Cryogenic Fourier transform spectrometer for infrared spectral calibrations from 4 to 20 micrometers
Published: 5/20/2010
Authors: Solomon I Woods, Simon Grant Kaplan, Timothy Michael Jung, Adriaan Carl Linus Carter, Raju Vsnu Datla
Abstract: We present initial performance data from a cryogenic Fourier transform spectrometer (Cryo-FTS) designed for low-background spectral infrared calibrations. The Cryo-FTS operates at a temperature of approximately 15 K and has been integrated into an in ...

10. Demonstration of a Meissner-Effect Transition Edge Sensor
Published: 7/26/2010
Authors: Solomon I Woods, Stephen M. Carr, Timothy M. Jung, Adriaan C. Carter, Raju Vsnu Datla
Abstract: We have built and tested a transition edge sensor which monitors temperature change by measuring magnetic flux expulsion from a superconducting element. Flux change is sensed by a dc SQUID coupled to the element using a flux transformer in a gradiom ...

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