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A Multimodal Wide-Field Fourier-Transform Raman Microscope
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Random spectrally resolved Maker fringes.

A M Vyunishev1, A S Aleksandrovsky, A I Zaitsev

  • 1L.V. Kirensky Institute of Physics, Krasnoyarsk, Russia. vyunishev@iph.krasn.ru

Optics Letters
|August 2, 2013
PubMed
Summary
This summary is machine-generated.

Researchers extended the Maker fringes technique to nonlinear media, observing spectral and angular oscillations in second harmonic generation. This work models nonlinear domain structures, matching experimental outcomes.

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Area of Science:

  • Nonlinear Optics
  • Materials Science

Background:

  • The Maker fringes technique is a standard method for characterizing nonlinear optical materials.
  • Nonlinear media with modulated susceptibility present unique optical phenomena.

Purpose of the Study:

  • To extend the Maker fringes technique to nonlinear media with one-dimensional second-order nonlinear susceptibility modulation.
  • To theoretically model and experimentally validate second-harmonic generation in such structured nonlinear materials.

Main Methods:

  • Extension of the Maker fringes technique.
  • Development of a theoretical model for second-harmonic generation in modulated nonlinear media.
  • Experimental validation of the theoretical model.

Main Results:

  • Observed oscillations in second harmonic intensity in both spectral and angular domains for broadband radiation.
  • Characterized these oscillations as random spectrally resolved Maker fringes.
  • Demonstrated excellent agreement between theoretical calculations and experimental results.

Conclusions:

  • The extended Maker fringes technique is effective for analyzing nonlinear media with susceptibility modulation.
  • The developed theoretical model accurately predicts second-harmonic generation in these structures.
  • This research provides a framework for understanding and designing nonlinear optical devices.