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  • 42.80
  • Springer  (10)
  • Annual Reviews
  • Elsevier
  • 1990-1994  (5)
  • 1975-1979  (5)
Collection
Keywords
Publisher
  • Springer  (10)
  • Annual Reviews
  • Elsevier
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Direct measurements of nonlinear absorption and refraction in solutions of phthalocyanines (1992)
    Springer
    Applied physics 54 (1992), S. 46-51 
    Details
    ISSN: 1432-0649
    Keywords: 33.00 ; 42.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report direct measurements of the excited singlet state absorption cross section and the associated nonlinear refractive cross section using picosecond pulses at 532 nm in solutions of phthalocyanine and naphthalocyanine dyes. By monitoring the transmittance and far field spatial beam distortion for different pulsewidths in the picosecond regime, we determine that both the nonlinear absorption and refraction are fluence (energy per unit area) rather than irradiance dependent. Thus, excited state absorption (ESA) is the dominant nonlinear absorption process, and the observed nonlinear refraction is also due to real population excitation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00331733
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  • 2
    Electronic Resource
    Electronic Resource
    Test of an optical parametric oscillator (OPO) as a compact and fast tunable stokes source in coherent anti-stokes raman spectroscopy (CARS) (1992)
    Springer
    Applied physics 55 (1992), S. 378-380 
    Details
    ISSN: 1432-0649
    Keywords: 42.60 ; 42.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An optical parametric oscillator (OPO), as a novel kind of broadband Stokes source, is employed for coherent anti-Stokes Raman spectroscopy (CARS). Compared to the conventional dye laser configuration OPO-CARS offers practical advantages. The tunable OPO allows a fast and comfortable frequency tuning. The excitation bandwidth of about 35 cm−1 (FWHM) limits the spectral range of effective and stable single pulse CARS generation but can be used to enhance selected spectral structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00333085
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  • 3
    Electronic Resource
    Electronic Resource
    Forward four-wave interactions in bismuth silicon oxide-theory and experiment (1990)
    Springer
    Applied physics 50 (1990), S. 355-359 
    Details
    ISSN: 1432-0649
    Keywords: 42.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The interaction between two strong pump beams and two signal beams is investigated both theoretically and experimentally. It is shown that the frequencies of the beams need to satisfy the relation that the sum of the pump beam frequencies should be equal to the sum of the signal beam frequencies. The gain is shown to depend on the detuning of the pump beams relative to the incident signal beam and on the direction of the signal beam. Maximum gain is obtained when the signal beams bisect the pump beams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325086
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  • 4
    Electronic Resource
    Electronic Resource
    Sagnac effect in the colliding-pulse-mode-locked dye ring laser (1991)
    Springer
    Applied physics 53 (1991), S. 119-120 
    Details
    ISSN: 1432-0649
    Keywords: 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A colliding-pulse-mode-locked dye ring laser was mounted on a rotary stage and the beat frequency of the two output pulse trains was measured as a function of the rotation rate. The measurements are in good agreement with the Sagnac theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325542
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  • 5
    Electronic Resource
    Electronic Resource
    Utilization of photoreversible optical nonlinearities intrans-cis photochromic molecules for spatial light modulation (1994)
    Springer
    Applied physics 58 (1994), S. 97-104 
    Details
    ISSN: 1432-0649
    Keywords: 42.10 ; 42.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this paper we examine the nonlinear optical properties of molecular systems undergoing acis-trans photoisomerization process. Such a process gives rise to dynamic photochromism on a picosecond time scale significant for designing a molecular Spatial Light Modulator (SLM). A kinetic analysis of a generalcis-trans nonlinear organic absorber is performed. The analysis is used to derive an expression for the imaginary part of the complex nonlinear molecular index of refraction. The properties of a molecular SLM based on such an absorber are discussed by examining the azo-type molecular system. These calculation predict an optimum contrast ratio and fast on-off switching for the SLM performance, achieved at low read-write laser intensities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01082342
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  • 6
    Electronic Resource
    Electronic Resource
    Beugungstheoretische Behandlung eines Differentialinterferometers für ausgedehnte Phasenobjekte (1976)
    Springer
    Applied physics 11 (1976), S. 241-246 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 42.80
    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 diffraction theory of image construction has been used, in the case of a differential interferometer employing a Wollaston prism, to derive the position of the interference fringes in dependence upon the phase object and the prism position. This procedure is not only more correct, but proves also to be simpler than the corresponding geometric-optical treatment. An example is presented in which the fringe shift resulting from a symmetrical gas flow has been used to evaluate the gradient of the optical path perpendicular to the rotational axis of symmetry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00897059
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  • 7
    Electronic Resource
    Electronic Resource
    Low-loss rotator and application for isolator design (1977)
    Springer
    Applied physics 13 (1977), S. 307-309 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 85.60 ; 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 The Faraday rotation associated with the Zeeman effect in gases is used to rotate the plane or polarization of plane polarized light with low loss of intensity. Advantage is taken of the rapid decrease of absorption relative to Faraday rotation between the split Zeeman components. Calculations of this Faraday rotation are applied to obtain design parameters for an isolator for 5.26 μm which show a significant improvement over conventional designs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882898
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  • 8
    Electronic Resource
    Electronic Resource
    Crossed gratings: A theory and its applications (1979)
    Springer
    Applied physics 18 (1979), S. 39-52 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 41
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract We introduce a rigorous formulation for the problem of the diffraction by a finitely-conducting, bi-periodic surface. The formationon is based on a coordinate transformation which maps the grating surface onto a plane. The transformed Maxwell equations are resolved using an iterative technique. The numerical implementation is tested against a number of criteria, including a comparison with two recently developed formalisms. As well, it is shown to give results in agreement with the Reciprocity Theorem, which is derived for efficiencies of crossed gratings in unpolarized light. The method has been shown to work throughout the whole range of values of surface conductivity. We investigate the effect of a surface-corrugation on the solar absorptance of a metallic mirror. We discuss a useful equivalence property linking the behaviour of crossed gratings with that of classical gratings. We exhibit for the first time a grating in a highly-reflecting metal capable of totally absorbing unpolarized incident light.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00935902
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  • 9
    Electronic Resource
    Electronic Resource
    Polarization selective optical heterodyne detection for dramatically improved sensitivity in laser spectroscopy (1979)
    Springer
    Applied physics 19 (1979), S. 1-17 
    Details
    ISSN: 1432-0630
    Keywords: 07.65 ; 42.65 ; 42.80
    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 noise characteristic of available laser sources limits the sensitivity of many types of nonlinear spectroscopy. We show how to maximize the sensitivity by optimizing the strength of a local oscillator wave in a heterodyne detection scheme without altering the amplitude of the wave being detected. The intensity profile of the optimum local oscillator closely matches that of the incident probe wave, but the optimum intensity is much less than that of the probe under realistic conditions. A general signal-to-noise analysis applicable to all nonlinear spectroscopy techniques is presented along with specific applications to coherent Raman spectroscopy, two-photon absorption, saturation spectroscopy, and optical coherent transient techniques. A simple optimization procedure employing polarization selection rules is described. Detailed calculations are performed for the case of TEM00 waves interacting via a third-order nonlinear susceptibility and for the case where the sample is simultaneously probed at many different frequency combinations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00900531
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  • 10
    Electronic Resource
    Electronic Resource
    On the theory and solar application of inductive grids (1977)
    Springer
    Applied physics 14 (1977), S. 1-20 
    Details
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 41
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A brief description is given of the rigorous formulism of Chen, which describes the diffraction by perfectly-conducting inductive grids. The formulism is used to prove several general properties of grids, including the relevant form of the Reciprocity Theorem. The theory is used to investigate the equivalent circuit model proposed by other authors for thin grids, and also to derive a monomodal model of the type first proposed by Chen. The latter model is shown to be useful even in the region where more than one spectral order propagates. The accuracy of the formulism is established by the comparison of calculated results with a number of far-infrared measurements on grids. The use of grids as solar-selective elements is investigated. They are shown to be capable of providinga/e ratios of the order of 30–40, provided that they are always pointed towards the sun, and that the diffuse content of the illumination is low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00882627
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