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  • Articles  (109)
  • 42.60  (109)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (109)
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  • Articles  (109)
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  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (109)
  • Physics  (356)
  • 1
    Electronic Resource
    Electronic Resource
    Frequencies of some optically pumped submillimetre laser lines (1976)
    Springer
    Applied physics 10 (1976), S. 187-188 
    Details
    ISSN: 1432-0630
    Keywords: 42.60 ; 06
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Precise frequencies of far infrared (FIR-) laser lines of HCOOH, CH3OH, CH3I, CH3F have been measured by comparison with harmonics of frequency-locked mm-wave klystrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00896338
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  • 2
    Electronic Resource
    Electronic Resource
    Raman scattering and optical susceptibilities of Nd-doped glasses (1976)
    Springer
    Applied physics 11 (1976), S. 167-170 
    Details
    ISSN: 1432-0630
    Keywords: 78.30 ; 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The absolute Raman scattering cross-sections of three Neodymium-doped glasses have been measured. These cross-sections have been used to determine the nonlinear optical susceptibility tensor of the three glasses. We have estimated the relative contributions of the “electronic” and “nuclear” nonlinearities to self-focusing index for linearly polarized light in these glasses. We have also performed numerical computations of the Hibert transform of our Raman scattering cross-sections, which are useful in the prediction of any other nonlinear effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00920598
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  • 3
    Electronic Resource
    Electronic Resource
    Superradiative rare gas halide lasers excited by electric discharge (1977)
    Springer
    Applied physics 12 (1977), S. 55-58 
    Details
    ISSN: 1432-0630
    Keywords: 42.60 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract High-power stimulated radiation was obtained in three fluorides of rare gases by exciting a high pressure mixture of He+R+SF6 (R is argon, krypton, xenon) by a pulse electric discharge (mixture pressure ranged from 1 to 10 atm). The ArF laser superradiance spectrum of about 15 Å total width with the centre at λ=1932 Å is given. The ArF laser power wasP≈104 W. The KrF laser generated 2 ns pulses of about 2.5 MW power at λ=2486 Å with a linewidth Δλ≈10 Å. This laser efficiency in relation to the stored energy of an accumulator is about 0.2%. In the XeF laserP=200 to 300 kW, τ=3 to 3.5 ns, λ=3511, 3531 Å. High density of superradiance power is observed. The prospects of increase of mean power of excimer lasers are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00900068
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  • 4
    Electronic Resource
    Electronic Resource
    Passive mode locking of a ruby laser using a birefringent crystal and a fractional-commensurate cavity length (1976)
    Springer
    Applied physics 11 (1976), S. 171-174 
    Details
    ISSN: 1432-0630
    Keywords: 42.60 ; 42.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Mode-locked operation has been observed in a Q-switched, ruby laser using a quartz crystal as the passvie mode-locking element and a laser cavity length which is a whole fraction of that which is commensurate in mode-frequency spacing with the lowfrequency stimulated Brillouin scattering (lf S BS) in the crystal element. In addition, high-bit-rate operation has been observed, suggesting that the passive modulation of the lf S BS process is sufficiently strong to maintain a fixed-phase relation between several neighboring oscillating modes of the laser.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00920599
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  • 5
    Electronic Resource
    Electronic Resource
    Decay rate measurements of upper laser level in He-Cd+ laser (1976)
    Springer
    Applied physics 11 (1976), S. 203-205 
    Details
    ISSN: 1432-0630
    Keywords: 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The decay rate of2 D 5/2 level of Cd II has been measured by the magnetic-field power-dip method. The decay rate at the zero-pressure limit is found to be 2.4·106s−1. The calculated collision cross section for excited Cd ions with He atoms equals 0.91·10−15 cm2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00920608
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  • 6
    Electronic Resource
    Electronic Resource
    Forced rayleigh-scattering in ruby from 50 to 300 K (1977)
    Springer
    Applied physics 13 (1977), S. 209-210 
    Details
    ISSN: 1432-0630
    Keywords: 42.60 ; 66 ; 78.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Spatially periodic temperature distributions were induced in ruby by superimposing two light waves of a Q-switched, frequency doubled Nd: YAG laser. The amplitude and decay time of the resulting thermal phase grating was measured by diffraction of an argon laser beam. Experimental results are compared with solutions of the heat conduction equation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882482
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  • 7
    Electronic Resource
    Electronic Resource
    A 1 MWP-terphenyl dye laser (1977)
    Springer
    Applied physics 13 (1977), S. 267-269 
    Details
    ISSN: 1432-0630
    Keywords: 42.60 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract P-terphenyl in cyclohexane, has been pumped by a KrF laser in a longitudinal configuration. Dye laser pulses of 11 mJ, 1 MW were obtained with over 10% conversion efficiency. N2 purge of the dye solution is shown to increase the conversion efficiency. The tuning curve between 321.8 nm and 365.3 nm is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882891
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  • 8
    Electronic Resource
    Electronic Resource
    Collective and single-electron interactions of electron beams with electromagnetic waves, and free-electron lasers (1978)
    Springer
    Applied physics 16 (1978), S. 121-138 
    Details
    ISSN: 1432-0630
    Keywords: 32 ; 42.60 ; 84
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The field of radiation emission from electron beams is reviewed with special reference to work related to free-electron lasers. Different schemes of interaction in periodic structures, electromagnetic slow-wave structures, and in transverse confining force are distinguished. Various effects and devices such as traveling wave amplifiers, Smith-Purcell radiators, Cerenkov and bremsstrahlung-free electron lasers, cyclotron resonance masers, coherent bremsstrahlung and channeling radiation are discussed and the differences and relations among them are explained. A simple comprehensive model is developed to describe electron-beam interaction with an electromagnetic wave in periodic electromagnetic structures. The model is general enough to describe both collective and single-electron modes of interaction and quantum mechanical, classical and Fermi degenerate regimes. Simplified expressions are developed for the gain by stimulated emission of radiation and for gain conditions of the Smith-Purcell-Cerenkov type free-electron lasers under conditions of very thin electron beams and infinite interaction length.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00930376
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  • 9
    Electronic Resource
    Electronic Resource
    Nitrogen-laser-pumped single-mode dye laser (1978)
    Springer
    Applied physics 17 (1978), S. 41-44 
    Details
    ISSN: 1432-0630
    Keywords: 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Single-mode operation of a N2-laser-pumped'dye laser has been obtained in a short laser cavity consisting of a diffraction grating used near grazing incidence and an uncoated resonant reflector. The dye laser pulse has a spectral linewidth of 420±30 MHz and a pulse width of 1.1±0.1 ns, giving a time-bandwidth of 0.46±0.07 close to the Fourier transform limit for Gaussian pulse.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00885028
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  • 10
    Electronic Resource
    Electronic Resource
    High-frequency discharge stability of waveguide He-Ne lasers (1978)
    Springer
    Applied physics 17 (1978), S. 405-411 
    Details
    ISSN: 1432-0630
    Keywords: 42.60 ; 52.40 ; 52.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The paper deals with the small-signal behavior and the stability of discharges in narrow capillaries. A theory is presented, which assumes that the time constants of the particle balance and the wall sheath extension determine the small signal behavior of a positive column. The column admittance is used to analyze the stability of an electric circuit typical for a He−Ne waveguide laser discharge. Numerical evaluation shows qualitative agreement of the experimental and the theoretical stability diagrams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886213
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