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Far infrared spectroscopy of solids. I. Impurity states in Al$sub 2$O$sub 3$. II. Electron-hole droplets in Ge

Description: Far infrared Fourier transform spectroscopy was used to study the low lying vibronic states of Mn$sup 3+$ in Al$sub 2$O$sub 3$ and the plasma absorption of electron-hole droplets in Ge. The transmission of Mn-doped samples of Al$sub 2$O$sub 3$ was measured in the frequency range from 3 to 30 cm$sup -1$ in applied magnetic fields up to 50 kG. Absorption lines were observed due to both ground and excited state transitions. Polarization measurements established that these absorption lines were due… more
Date: September 12, 1975
Creator: Aurbauch, R.L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Application of a low energy x-ray spectrometer to analyses of suspended air particulate matter

Description: A semiconductor detector x-ray spectrometer has been constructed for the analysis of elements in air particulate specimens. The excitation radiation is provided, either directly or indirectly, using a low power (40 watts) Ag anode x- ray tube. Less than 100 ng for most of the elements in the range Mg $Yields$ Zr, Pb are easily detected within two 1-minute counting intervals. A calibration technique for light element analysis and an experimental method which compensates for particle size effects… more
Date: September 12, 1975
Creator: Giauque, R. D.; Garrett, R. B.; Goda, L. Y.; Jaklevic, J. M. & Malone, D. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electron-beam pumping of visible and ultraviolet gas lasers

Description: Several techniques for using direct electron-pumping of gas lasers are reviewed. The primary objective is to categorize pump geometries and to give guidelines for gun selection and pulser design. Examples and application of pump technology are given. (auth)
Date: September 12, 1975
Creator: Bradley, Laird P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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