IEEE Journal of Quantum Electronics

Issue 7 • July 1972

Filter Results

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

    Publication Year: 1972, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (362 KB)
    Freely Available from IEEE
  • The role of excited states in multiphoton ionization

    Publication Year: 1972, Page(s):623 - 631
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3056 KB)

    The mixing of the excited states of an atom with the ionization continuum is considered by a modification of Fano's theory of autoionization. It is shown that in the case of the noble gases this leads to a reduction of the threshold power-law indexKfromI/hbaromegatoE_{n}/hbaromega(whereIis the ionization energy, Enthe lowest excited state ener... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High-radiance room-temperature GaAs laser with controlled radiation in a single transverse mode

    Publication Year: 1972, Page(s):632 - 641
    Cited by:  Papers (15)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3263 KB)

    A GaAs laser for room-temperature operation is reported with high radiance and short delay times. For high radiance, the radiation of a 200-μ-wide GaAs laser diode is confined to the lowest order transverse mode. This is accomplished by operating the laser diode with an optical cavity in which the transverse mode is controlled by aperture-limiting slits. In the cavity, built of spherical lens... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measurements of device parameters for Nd:YAlO3lasers

    Publication Year: 1972, Page(s):669 - 674
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1871 KB)

    This paper presents measurements of several properties of Nd:YAlO3useful in the design of laser devices. Values for the gains, cross sections, and saturation parameter of the4F_{3/2} rightarrow 4I_{11/2}transitions are presented for principal axis polarizations. Thermal focal lengths, spherical aberration, and astigmatism forA-, B-, andC-axis rodsfr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High-repetition-rate continuously pumped ruby laser

    Publication Year: 1972, Page(s):675 - 676
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (925 KB)

    The first successful operation of a high-repetition-rate repetitivelyQ-switched ruby laser is reported. Using an acousto-opticQswitch, repetition rates up to 5000 pps have been achieved. When the laser is optimized, peak power outputs of 20 kW at 500 pps and 8 kW at 2000 pps can be expected. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • PassiveQswitching of a CO2laser near 9.2 µ using CF2Cl2

    Publication Year: 1972, Page(s):676 - 677
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1030 KB)

    CF2Cl2is found to cause passiveQswitching on practically all of the lines in theRbranch of the00deg1-02deg0vibrational-rotational band of CO2. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • CW laser oscillation at 6127 Å in singly ionized iodine

    Publication Year: 1972, Page(s):679 - 680
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    CW laser action has been obtained on the 6127-Å transition ofI(II) in a He-CdI2discharge. Relative output power has been measured as a function of discharge current, helium pressure, and CdI2temperature. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • CW operation in some CO lines below 5.0 µ

    Publication Year: 1972, Page(s): 679
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    CW laser emission has been observed from a He-N2- O2-CO laser on six vibration-rotation lines of carbon monoxide that lie below 5.0 μ. The lines correspond toV = 3:2andV = 4:3transitions. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • [Back cover]

    Publication Year: 1972, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (1091 KB)
    Freely Available from IEEE
  • Gain and relaxation studies in transversely excited HF lasers

    Publication Year: 1972, Page(s):651 - 655
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1680 KB)

    The results of measurements of the spatial and temporal dependence of the gain of a pulsed HF laser are reported and are compared with those for CO2lasers. While the propagation in space of a locally excited gain medium is observed to be comparable for the two lasers, the time developments are vastly different. The extremely fast gain decay rates that were observed in the HF laser are s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Output fluctuations of CW-pumped Nd:YAG lasers

    Publication Year: 1972, Page(s):656 - 661
    Cited by:  Papers (12)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2024 KB)

    The mechanisms that cause amplitude modulation in CW-pumped YAG lasers were investigated experimentally. The depth of modulation and frequency spectrum of the output fluctuations of a commercially available Nd:YAG laser were measured. It was found that after performing several modifications on the laser system, the output fluctuations were reduced by two orders of magnitude. At the conclusion of t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hybrid injection locking of higher power CO2lasers

    Publication Year: 1972, Page(s):641 - 650
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3760 KB)

    Frequency stabilization of a higher power CO2ring laser by locking with a stable low-power reference laser is described. Successful locking is achieved by employing a novel hybrid injection-locking technique. In the hybrid mode, the higher power laser is tuned to operate on a self-oscillation line different from that of the reference laser. Within the frequency-locking range, the self-o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hollow dielectric waveguide for distributed feedback lasers

    Publication Year: 1972, Page(s):661 - 669
    Cited by:  Papers (45)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2856 KB)

    Hollow dielectric waveguides with gas-filled core and a dielectric tube seem promising as laser structures. The tube fulfills the dual role of a guidance structure for the electromagnetic radiation as well as that of a container for the plasma of the gas laser. Feedback for laser oscillation is achieved by providing coupling between forward- and backward-traveling modes by means of periodic ripple... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Far-infrared laser emission from H2CO in a large gas-laser tube

    Publication Year: 1972, Page(s):677 - 679
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB)

    Far-infrared laser emission from H2CO in the sealed-off operation has been obtained with a large gas-laser tube. This emission has been observed from the beginning of discharge to several tens of pulses under pulsed electrical excitation. The emission lines were 102, 119, 122, and 159 μm. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

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