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Displaying 76 - 100 of 351

Calibration of a Spectral Responsivity Transfer Standard

October 16, 2008
Author(s)
George P. Eppeldauer, Leonard Hanssen
A NIST-Developed pryoelectric radiometer was characterized and calibrated to extend the NIST high accuracy spectral responsively scale from the visible range to the ultraviolet (UV) and infrared (IR). The transmission of the gold-black coated LiNbO 3

Miniature Fourier Transform Instrument for Radiation Thermometry

October 16, 2008
Author(s)
F J. Dunmore, Leonard Hanssen
A miniature Fouier transform (FT0 spectrometer was evaluated as a device for remotely measuring the temperature of a high stability/emissivity blackbody. The device, commercially manufactured by Photonex LTD.,* is based on the novel design of a polarizing

Angle-dependent infrared reflectance measurements in support of VIIRS

August 14, 2008
Author(s)
Simon G. Kaplan, Leonard M. Hanssen, Enrique J. Iglesias
We have developed a goniometric reflectometer using a Fourier-transform infrared (FTIR) spectrometer source for polarized reflectance measurements from 1 um to 20 um wavelength at angles of incidence from 10° to 80°, with an incident beam geometry of

Thermal, Structural, and Optical Properties of Multispectral Zinc Sulfide

May 4, 2006
Author(s)
L Henneman, L LaCroix, C Wilson, S Kurzius, D C. Harris, M Baronowski, B Burns, K Kitagawa, J Gembarovic, S Goodrich, Leonard Hanssen, Simon G. Kaplan, C Staats, J Mecholsky
Lockheed Martin Space Systems Company (LMSSC) and Vicus Technologies have conducted a study to obtain the thermal, structural and optical property data required to predict the flight performance of Multispectral Zinc Sulfide (MS ZnS) windows. The Naval Air