Accession Number : ADA309672

Title :   Material for Spectral Hole Burning Storage.

Descriptive Note : Final rept. 1 Dec 92-29 Feb 96,

Corporate Author : CITY COLL NEW YORK DEPT OF PHYSICS

Personal Author(s) : Alfano, R. R. ; Gorokhovksy, Anshel

PDF Url : ADA309672

Report Date : 21 MAY 1996

Pagination or Media Count : 7

Abstract : Over the awarded period, a new optical laboratory to characterize hole burning materials was completed. Si doped diamond films. Eu3+ and Tu3+ doped polymers and Tu3+ doped sol gel glasses were studied. The diatomic Si2 of the defect center in diamond was established. Low temperature persistent hole burning was observed with hole width of 0.01 cm. Hole width dependence on irradiation dose and temperature were studied. A photoinduced hole filling was observed. A 2D imaging amplitude correlation technique was developed and demonstrated for single shot photon echo read out with a read out speed of 27 Terabits per second. Photon echo dependencies on exposure time, delay time between data and reference pulses, and number of readout cycles were studied. Up to 10,000 single shot readout cycles by a femtosecond pulse were observed without substantial echo signal degradation.

Descriptors :   *OPTICAL STORAGE, OPTICAL PROPERTIES, DEGRADATION, GLASS, PHOTONS, DOPING, IRRADIATION, GELS, READ OUT TECHNIQUES, THULIUM, SOL GEL PROCESSES.

Subject Categories : Computer Hardware
      Solid State Physics
      Recording and Playback Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE