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IEEE Journal of Quantum Electronics

Issue 5 • May 1971

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Displaying Results 1 - 14 of 14
  • [Front cover and table of contents]

    Publication Year: 1971, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (149 KB)
    Freely Available from IEEE
  • Two-photon-absorption laws for coherent and incoherent radiation

    Publication Year: 1971, Page(s):189 - 195
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (778 KB)

    The differential equation for the attenuation of a light beam transmitted through a two-photon absorber is solved for two cases: 1) nonfluctuating or 2) Gaussian-fluctuating light beams. The two cases obey entirely different absorption laws. It is further shown that the fluctuation behavior changes throughout the absorption process. The fluctuations are characterized by the intensity autocorrelati... View full abstract»

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  • Oscillation of the 1.833-µ line in Nd3+:YAG

    Publication Year: 1971, Page(s):203 - 204
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (863 KB)

    This correspondence reports oscillation of the4F_{32} rightarrow4I_{15/2}, 1.833-mutransition in Nd3+:YAG. PeakQ-switched output powers of 10 kW at 50 pps have been obtained. View full abstract»

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  • Iodine-atom laser emission in 2-2-2 trifluoroethyliodide

    Publication Year: 1971, Page(s):207 - 208
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (290 KB)

    Lasing at 1.3 μ upon flash photolysis of 2-2-2 tri-fluoroethyliodide, CF3CH2I, has been observed on the2P_{1/2}-2P_{3/2}magnetic dipole allowed transition of atomic iodine. Using an 800-J flash, a maximum peak power output of approximately 108 W for 10-μs duration at half-maximum intensity was obtained with a pressure of 1... View full abstract»

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  • 4.9-µ He-Air-CH4-(CO) laser

    Publication Year: 1971, Page(s):208 - 209
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (242 KB)

    Low-vibrational-levelP(J)_{upsilon,upsilon'}CO laser emissions have been measured from He-air-CH4mixtures. The CW lines below 5.0μ were measured in air to occur at 4.8836, 4.8935, 4.8974, 4.9072, 4.9366, 4.9466, 4.9670, and 4.9778μ. These emissions are tentatively identified to result from transitions as low asupsilon = 3 : 2. Such emissions were relative... View full abstract»

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  • New O II 6640-Å laser line

    Publication Year: 1971, Page(s): 208
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (139 KB)

    A prominent red laser line has been observed in oxygen and air at a wavelength of 6640.2 ± 1 Å. This line corresponds to the3p^{2}Smin{1/2}max{0}-3s^{2}P_{1/2}at 6640.90 Å of the O II spectrum. It is the strongest member of the observed emission lines close to the laser line. View full abstract»

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  • [Back cover]

    Publication Year: 1971, Page(s): 0
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    Freely Available from IEEE
  • Forced and self-mode-locking of the krypton ion laser

    Publication Year: 1971, Page(s):205 - 207
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Mode-locking of a krypton ion laser has been studied using a graphite-bore plasma tube and acoustooptic modulator In forced mode locking, 0.2-ns pulses were achieved with the principal laser lines. In contrast with the argon laser, there is a marked tendency for self-locking in krypton. View full abstract»

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  • Effect of inductance on the small-signal gain of a transverse-excitation atmospheric-pressure discharge in carbon dioxide

    Publication Year: 1971, Page(s):199 - 200
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    An external inductance was placed in the circuit of a resistive transverse-excitation atmospheric discharge to observe its effect on the small-signal gain of a CO2-He-N2gas mix. The results of the measurements indicate that by lowering the inductance of the circuit, less helium is required in the gas in order to obtain a uniform discharge; consequently, more CO2and... View full abstract»

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  • Thermal transient effects in optically pumped repetitively pulsed lasers

    Publication Year: 1971, Page(s):200 - 202
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    An approximate formulation of the thermal transient effects in laser rods, such as the temperature distribution in the laser rod and the effect of rod distortion on a collimated light beam passing through the rod, is described. Also, a computation is made for a practical case and compared to experimental results. View full abstract»

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  • GaAs-laser-induced population inversion in the ground-state hyperfine levels of Cs133

    Publication Year: 1971, Page(s):196 - 198
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    This paper describes the achievement of population inversion among the hyperfine levels in the ground state of Cs133by optically pumping these atoms with radiation from a GaAs diode laser. The laser output was used to monitor the populations in the two ground-state hyperfine levels as well as to perform the hyperfine pumping. By varying the injection current, a GaAs laser operated CW at... View full abstract»

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  • Phosphor system for converting far-infrared laser radiation to visible light

    Publication Year: 1971, Page(s):202 - 203
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (984 KB)

    Criteria are given for the design of a directly visible phonon-assist phosphor device for converting far-infrared radiation to visible light. The operation of such a device, made with a readily available phosphor, is described. Two modes of conversion are demonstrated. View full abstract»

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  • Optical breakdown in gases of medium ionization potential

    Publication Year: 1971, Page(s):204 - 205
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Breakdown threshold with ruby laser excitation has been determined for the gases Cl2, Br2, I2, ICl, NO, NO2, Hg, and C6H6, using argon as a reference. Our results indicate that threshold depends mainly on the ionization potential and that effects due to absorption in the visible region are secondary. View full abstract»

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  • Excitation of an atmospheric-pressure CO2-N2-He laser by capacitor discharges

    Publication Year: 1971, Page(s):185 - 189
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The design of a new type of atmospheric pressure CO2-N2-He laser capable of producing 1.2-J infrared light pulses with a peak power of 0.5 MW is described. An investigation of the laser output dependence on gas flow, gas mixture, capacitor voltage, output coupling reflectivity, and electrode spacing was made. It is shown that even greater energies and powers should be possibl... 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.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Prof. Hon Ki Tsang
Chinese University of Hong Kong