Optics

Volume 2, Issue 1, February 2013

  • Modeling of Vibration Sensing with Variable Fabry-Perot System

    Fadhali Mohamed

    Issue: Volume 2, Issue 1, February 2013
    Pages: 1-6
    Published: 20 February 2013
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    Abstract: The application of Fabry-Perot (FP) system for vibration sensing is theoretically analyzed and successfully demonstrated by simulation. The separation between the reflecting mirrors of the FP is varying in accordance with the sensed vibration that is in contact with the freely movable mirror. The variable separation is modeled as a small uniform si... Show More
  • Nonlinear Amplification of the Brillouin-Rayleigh Triplet Caused by Two-Photon Heating

    V. B. Karpov, V. V. Korobkin

    Issue: Volume 2, Issue 1, February 2013
    Pages: 7-16
    Published: 20 February 2013
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    Abstract: The thin structures of stimulated Brillouin scattering (SBS) and stimulated temperature scattering (STS) spectral components caused by two-photon heating are analyzed theoretically. In contrast to the linear (single-photon) case for two-photon heating a stokes SBS component exhibits the spectral shift depending on the pump intensity. Emergence of a... Show More
  • Conditions and Probability of electron-Photon Interactions

    Tibor Berceli

    Issue: Volume 2, Issue 1, February 2013
    Pages: 17-24
    Published: 20 February 2013
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    Abstract: In that paper some aspects of electron-photon interactions are discussed. Although that subject has already been treated in many publications there are still some unsolved problems: like relationship between photon duration and electron transit time, or conditions and probability of interaction processes. These are addressed in this paper and new r... Show More
  • Cleanness Evaluation Method of Remaining Dirt on Inner Surface of Narrow Tubule by IR Spectroscopy

    Shouhei Koyama, Yuki Miyauchi, Hiroaki Ishizawa

    Issue: Volume 2, Issue 1, February 2013
    Pages: 25-31
    Published: 20 February 2013
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    Abstract: We try to develop a new measurement method for cleanliness evaluation of inner surface of narrow tubule.In this measurement method, we use the infrared spectroscopy and the partial least squares regression (PLSR).The absorption spectrum is measured by using fiber probe and cone mirror.We measure the spectra of the known amount of dirt.We build a ca... Show More