NDLTD logo NDLTD Union Catalog and Global ETD Search

Global ETD Search

Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

Results

Showing 1 to 12 of 12 for “"F centers"”.

  1. Photoconductivity in Potassium-Bromide Containing F-Centers

    Robe, John KennethUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T17:12:17Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6003987.PDF: 1905892 bytes, checksum: 21a40b8a87ccde0b6689c601daa7e97e (MD5) Previous issue date: 1960

    uiuc Repository record

  2. Lifetimes of Excited States in Alkali-Halide Crystals Containing F-Centers

    Swank, Robert KesslerUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T17:12:31Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6302924.PDF: 4052441 bytes, checksum: a5654db56170e5f0f09a9a9ccad1236d (MD5) Previous issue date: 1962

    uiuc Repository record

  3. Experimentally Determined Configuration Coordinate Curves for F-Centers in Alkali-Halide Crystals

    Russell, George AlbertUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T17:11:58Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0013551.PDF: 2796468 bytes, checksum: e4cbd41775268da1e4c6e3893767936a (MD5) Previous issue date: 1955

    uiuc Repository record

  4. Paramagnetic Resonance of the F-Centers and M-Centers in Alkali-Halides

    Holton, William CoffeenUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T17:03:36Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6100146.PDF: 2967717 bytes, checksum: 22e4ca765e756fc26ae75ce77e18346b (MD5) Previous issue date: 1960

    uiuc Repository record

  5. The Effect of Applied Uniaxial Stresses on The Optical Absorption of F-Centers in Alkali-Halides

    Schnatterly, Stephen EugeneUniversity of Illinois at Urbana-Champaign2015

    Made available in DSpace on 2015-05-12T21:41:34Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6511863.PDF: 4265333 bytes, checksum: eaad8854e9778a74cd6f7d76de03b912 (MD5) Previous issue date: 1965

    uiuc Repository record

  6. The effect of applied uniaxial stresses on the optical absorption of F centers in alkali halides

    Schnatterly, Stephen Eugene2011

    … absorption of alkali halides containing F centers. By measuring the first moment change of the F band due to uniaxial stresses applied in (100) and (1l0) directions,' the coupling of the F center excited state to lattice distortions of tetragonal and trigonal symmetry is evaluated. By …

    uiuc Repository record

  7. Spectral analysis of integrated F-center feedback dosimeter

    Schumaker, Daniel(Daniel C.)Massachusetts Institute of Technology2018

    … on the radiation-stimulated production of F-centers in alkali halide salts. F-centers are optically active vacancies in the cation-anion lattice filled with a lone electron. These vacancies cause dimming bands in broad-band illumination of the crystal, and the vacancies increase in number in …

    mit Repository record

  8. Defect production in alkali halide crystals by monochromatic x and UV radiation

    Sever, Byron Ross2011

    … extremely sensitive, new method of detecting F-centers in ultralow concentrations, which utilizes the luminescent properties of these centers. This Laser-Induced Luminescence method enables us to detect concentrations of F-centers that are five orders of magnitude smaller than can be detected by …

    uiuc Repository record

  9. The surface effects of alkali halides in the infrared

    Llamas, Vincent JosephUniversity of Missouri--Rolla2016

    … surface state theory and its applications to F-centers of alkali halides is presented. Experimental infrared data show an absorption which seems to correspond with the ground state to first excited state transition. Surface state concentrations of F-centers as a function of depth into the …

    must-thes Repository record

  10. Polaron transport in ionic crystals

    Borders, James Alan1968

    … been attributed to spin polarization of the F centers along with the conduction electrons. They have been analyzed using a simplified model. Preliminary measurements of spectral response of photoconductivity in AgBr have been made and the results compared with optical absorption. Structure has …

    uiuc Repository record

  11. Absorption and luminescent excitation spectra of F and M centers in Kcl and NaF

    Boettler, James Leroy2011

    … excitation spectra were measured for the F and M centers in KCl; in particular, for the F band, M band, and the M2 transition. In all 3 cases, the spectra were nearly double-Gaussian in shape, and the efficiency for luminescence was nearly independent of the wavelength of the exciting light. A …

    uiuc Repository record

  12. Luminescence of impurity-activated alkali halides under high pressure

    Drotning, William David2011

    … In the solid state high pressure cell, F centers are formed in NaCI:In+ which has been irradiated in the near UV C-absorption band of the In+ center. The mechanism is a photothermal release of the excited electron from the In ion through the conduction band to vacancies which exist due to …

    uiuc Repository record