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IEEE Journal of Quantum Electronics

Issue 1 • Date January 1969

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Displaying Results 1 - 13 of 13
  • [Front cover and table of contents]

    Publication Year: 1969, Page(s): 0
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    Freely Available from IEEE
  • Radial profile of neon 1s5atoms in a He-Ne active discharge and their lens effect on lasing at 6401 Å

    Publication Year: 1969, Page(s):21 - 29
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (932 KB)

    A laser interferometer was used to determine the spatial distribution of the neon 1s_{5} metastable states in an auxiliary active discharge, identical to the one used for a He-Ne laser at 6401 Å. The resulting distribution was a parabola, which crossed zero at the discharge tube walls. Measurements of the 6401-Å spot size were used to determine the ... View full abstract»

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  • Characteristics of a single-frequency sealed-off CO2amplifier

    Publication Year: 1969, Page(s):48 - 49
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (246 KB)

    The measured small-signal gain of 4.8 dB/m for a sealed-off COs amplifier with average bore of 25 mm compares favorably with the highest gain published for a flowing-gas type. The saturated gain for this 9-meter amplifier was 1.2 dB/m with 95-watts output when sealed off and 1.3 dB/m with 110-watts output for a flowing-gas system. View full abstract»

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  • Observation of new laser transitions in N20

    Publication Year: 1969, Page(s): 50
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

    First Page of the Article
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  • [Back cover]

    Publication Year: 1969, Page(s): 0
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    Freely Available from IEEE
  • Photochromic materials for quantum electronics

    Publication Year: 1969, Page(s):12 - 17
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The characteristics of idealized photochromic materials are defined. The optical properties of rare-earth-doped CaF2and transition-metal-doped SrTiO3photochromic materials are outlined. The operational parameters of these inorganic photochromic materials pertinent to electrooptic applications are described. View full abstract»

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  • Bismuth-doped Pb1-xSnxTe diode lasers with low-threshold currents

    Publication Year: 1969, Page(s):50 - 51
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    Diode lasers have been fabricated from Bi-doped Pb1-xSnxTe with 0.24 \leq x \leq 0.27 , which have threshold current densities as low as 1400 A.cm-2at 77°K and 71 A.cm-2at 12°K, whereas diodes fabricated from undoped Pb1-xSnxTe> in this composition range did not exhibit laser actio... View full abstract»

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  • Optical and EPR studies of photochromic SrTiO3doped with Fe/Mo and Ni/Mo

    Publication Year: 1969, Page(s):17 - 21
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Large reversible photochromic changes were observed in SrTiO3double doped with Mo and either Fe or Ni. The photochromic absorption is induced by irradiation in the vicinity of 4000 Å and decays thermally in minutes or can be bleached to its original state by long wavelength radiation. A model is presented in which a charge is transferred between the Fe and Mo ions via the conductio... View full abstract»

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  • The singly ionized krypton ion laser

    Publication Year: 1969, Page(s):38 - 44
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB)

    Basic data on the Kr+ laser such as the population densities, pumping rates, lifetimes, etc., of all the upper laser states and those states that contribute significantly to the populations of these upper laser states have been obtained. These results were obtained on the basis of the calculated Einstein A coefficients and the measured spontaneous emission data... View full abstract»

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  • Observation of phase pulsations and combination tones in the output of a CW gas laser

    Publication Year: 1969, Page(s):7 - 11
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    Phase pulsations between normal frequencies and combination tones can be observed using a scanning interferometer. Results are in substantial agreement with Lamb's theory for three-normal-frequency operation. Isolated combination tones have also been observed. View full abstract»

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  • Pulse shapes and spatial modes in Raman lasers

    Publication Year: 1969, Page(s):1 - 6
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    The steady-state performance of a Raman laser oscillator can be described by a simple standing-wave theory. This theory has been extended to take into account the time variation of the exciting laser pulse. The resulting differential equation is nonlinear, but analytic expressions can be obtained in the limiting cases of small-signal amplification and saturation. Experimental results in H... View full abstract»

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  • Standing waves and single-mode room-temperature laser emission from electron-beam-pumped cadmium sulfide

    Publication Year: 1969, Page(s):44 - 47
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A thin crystal of CdS produced well-defined standing waves in spontaneous light emission when end-pumped by an electron beam at excitation levels six orders of magnitude below that necessary for stimulated emission. Single-frequency mode output was observed in stimulated emission at 5205 Å at room temperature. At 77°K and at excitation levels well above threshold, laser emission was obse... View full abstract»

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  • Resonant modes of GaAs junction lasers

    Publication Year: 1969, Page(s):29 - 37
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1136 KB)

    The resonant modes of GaAs junction lasers are obtained from a proposed model and compared with experimental results. Theoretical results are based on an assumed laser medium whose dielectric constant varies both along and perpendicular to the junction plane. The frequency separations of the transverse modes are found to be in very good agreement with presented high-resolution spectral measurement... View full abstract»

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Aims & Scope

The IEEE Journal of Quantum Electronics is dedicated to the publication of manuscripts reporting novel experimental or theoretical results in the broad field of the science and technology of quantum electronics..

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Meet Our Editors

Editor-in-Chief
Aaron R. Hawkins
Brigham Young University