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Search Publications by: Joseph P Rice (Fed)

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Displaying 51 - 75 of 81

NIST Activities in Support of Space-Based Radiometric Remote Sensing

June 1, 2001
Author(s)
Joseph P. Rice, B C. Johnson
This paper provides an overview of NIST research and development in optical radiometry in the field of space-based remote sensing. The applications in this field can be generally divided into two areas: environmental and defense. In the environmental

Thermal-Infrared Scale Verifications at 10 um Using the NIST EOS TXR

November 1, 2000
Author(s)
Joseph P. Rice, S C. Bender, W H. Atkins
One element of a multi-year calibration program between NIST and the NASA EOS Project Science Office has been the development and deployment of a portable transfer radiometer for making verifications of the thermal-infrared scales being used for flight

An Electrically Substituted Bolometer as a Transfer Standard Detector

July 1, 2000
Author(s)
Joseph P. Rice
We have developed an electrically substituted bolometer (ESB) to serve as a portable transfer-standard detector over the full wavelength range from 200 nm to 20 m. The ESB is designed to provide a direct transfer of the optical power scale from the NIST

Deployment Test of the NIST EOS Thermal-Infrared Transfer Radiometer

November 1, 1999
Author(s)
Joseph P. Rice, S C. Bender, W H. Atkins, Francis J. Lovas
The National Institute of Standards and Technology (NIST) Thermal-infrared Transfer Radiometer (TXR), developed for the National Aeronautics and Space Administration (NASA) Earth Observing System (EOS), was deployed at the remote sensing radiometric

The Next Generation of Active Cavity Radiometers for Space-Based Remote Sensing

August 1, 1999
Author(s)
Joseph P. Rice, Steven R. Lorentz, T M. Jung
Active cavity radiometers (ACRs) have been used for years to measure solar radiation and Earth radiation from low Earth orbit. Extant space-flight ACRs were designed to measure relatively high irradiance values, approximately 136 mW/cm 2 for total solar

Diagnostics of 'Colossal' Magnetoresistance Manganate Films by Raman Spectroscopy

November 1, 1998
Author(s)
V B. Podobedov, D B. Romero, A Weber, Joseph P. Rice, R Schreekala, M Rajeswari, R Ramesh, T Venkatesan, H D. Drew
Polarized Raman scattering by phonons is used to characterize thin films prepared by laser ablation of a lanthanum manganese oxide target. It was found that in the temperature range from 6 K to 300 K phonon spectra of La 0.7Ca 0.3MnO 3 films exhibit

The NIST EOS Thermal-Infrared Transfer Radiometer

August 1, 1998
Author(s)
Joseph P. Rice, Bettye C. Johnson
A portable thermal infrared transfer radiometer (TXR) has been developed for use in comparisons and scale verifications of sources used to calibrate thermal- infrared (TIR) channels of the National Aeronautics and Space Administration's (NASA's) Earth

Active Cavity Radiometer Based on High-TC Superconductors

January 1, 1998
Author(s)
Joseph P. Rice, Raju V. Datla, Leila R. Vale, David A. Rudman, M L. Sing, D Robbes
To implement the detector-based radiometric scale in the new Medium Background infrared [MBIR] facility at the National Institute of Standards and Technology [NIST], we have developed an electrical substitution cavity radiometer that can be operated at

Raman Investigation of the Layered Manganese Perovskite La1.2 Sr1.8 Mn207

December 4, 1997
Author(s)
D B. Romero, V B. Podobedov, A Weber, Joseph P. Rice, J.F. Mitchell, R P. Sharma, H D. Drew
We report the results of a detailed polarization and temperature dependence study of the Raman scattering from La1.2Sr1.8Mn207. The Raman spectra reveal three general spectral features. First, there are sharp peaks due to long-wavelength optic phonons