Accession Number : AD0837122

Title :   NARROWBAND INFRARED DETECTION OF IMPORTANT LASER WAVELENGTHS,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH NJ INST FOR EXPLORATORY RESEARCH

Personal Author(s) : Gualtieri, John G. ; de Lhery, Guy P. ; AuCoin, Thomas R. ; Pastore, John R.

Report Date : 1968

Pagination or Media Count : 7

Abstract : The report contains Bloembergen's proposal for a narrowband infrared quantum counter (IRQC) has attracted much attention, since it offers a scheme to up-convert radiation in the 1-3 micron m region to the visible region where conventional detectors have better characteristics. The theoretical minimum noise temperature of the IRQC approaches absolute zero, thus the IRQC is only photon noise limited by background and signal fluctuations. The type of IRQC reported here utilizes the energy levels of rare earth ions in crystals. (Author)

Descriptors :   (*LASERS, INFRARED SPECTROSCOPY), DETECTION, NARROWBAND, INFRARED RADIATION, MILITARY REQUIREMENTS, FLUORESCENCE, EXCITATION, MONOCHROMATORS, PHOTOMULTIPLIER TUBES, SINGLE CRYSTALS, FLUORIDES, TUNGSTEN, GARNET, OPTICAL FILTERS, SENSITIVITY, INFRARED DETECTORS, RARE EARTH ELEMENTS, STATISTICAL MECHANICS, COUNTING METHODS.

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE