Special Issue on Stimulated Scattering and Phase Conjugation for Near Ultraviolet Spectral Region

Submission Deadline: Aug. 30, 2015

Please click the link to know more about Manuscript Preparation: http://www.opticsjournal.org/submission

  • Lead Guest Editor
    • Vladimir B. Karpov
      Electrical-Electronics Engineering Department, Trakya University, Moscow, Russia
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  • Introduction

    Stimulated scattering (SS) is widely used in scientific research and practical applications. This motivates studies of the physical mechanisms responsible for SS in various spectral regions. An important application is phase conjugation (PC) via stimulated backscattering (PC via SS). Various SS mechanisms have specific characteristics (frequency shift, decay time, etc.) that manifest themselves in the PC mirrors properties.

    Detailed experimental studies of SS have been conducted only in the near-infrared (near-IR) region. For such experiments the pump radiation must have both high power and narrow bandwidth. The first sources of this kind were Q-switched single-mode ruby (λ=0.69µm) and Nd:glass (λ=1.06µm) lasers. For weak linear absorption, stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) were usually observed, for stronger linear absorption - stimulated thermal scattering (STS) caused by the heating due to linear absorption (linear STS-2).

    In the first experimental studies of SBS for the near-IR pump radiation the unshifted spectral components were supposed to be the pump spectral lines. But under this experimental conditions the pump spectral lines could not be distinguished from slightly-shifted components corresponding, for instance, to linear STS-2. Multiphoton absorption could not influence the experiments because 5÷10 near-IR photons with energies 1÷2eV would be required to obtain the nearest electron resonance with an energy about 10eV.

    Theoretical studies of SS have mostly relied on experimental results obtained for the near-IR region, and the modern SS theory applies only to linearly absorbing media.

    Reliable near-ultraviolet (near-UV) radiation sources (discharge XeF, XeCl, KrF, and ArF excimer lasers) became available considerably later than the solid-state near-IR lasers. When experimentalists in 1980-s had to deal with the PC via SS driven by excimer laser beams, the SS theory developed for the near-IR was applied to the near-UV spectral region. Part of the experimental measurements of the frequency shift and the PC fidelity gained from previous studies of SS of nanosecond (5÷10ns) near-UV (λ=193÷351nm) laser pulses in liquids (hexane, heptane, and others) are found to disagree with the theory of SS, which takes into account only the linear (single-photon) light absorption.

  • Guidelines for Submission

    Manuscripts can be submitted until the expiry of the deadline. Submissions must be previously unpublished and may not be under consideration elsewhere.

    Papers should be formatted according to the guidelines for authors (see: http://www.opticsjournal.org/submission). By submitting your manuscripts to the special issue, you are acknowledging that you accept the rules established for publication of manuscripts, including agreement to pay the Article Processing Charges for the manuscripts. Manuscripts should be submitted electronically through the online manuscript submission system at http://www.sciencepublishinggroup.com/login. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal and will be listed together on the special issue website.