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Related Experiment Video

Updated: Jun 1, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Phase-matched nonlinear diffraction.

Asia Shapira1, Ady Arie

  • 1Department of Physical Electronics, School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel. asiasapi@post.tau.ac.il

Optics Letters
|May 20, 2011
PubMed
Summary
This summary is machine-generated.

We introduce a novel method combining birefringence and quasi-phase-matching for efficient nonlinear diffraction in periodically poled crystals. This technique enhances efficiency and enables new applications in nonlinear microscopy and material characterization.

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Area of Science:

  • Nonlinear Optics
  • Materials Science
  • Crystallography

Background:

  • Quasi-phase-matching (QPM) is crucial for nonlinear optical processes in periodically poled crystals.
  • Birefringence is an intrinsic property of many nonlinear optical materials.
  • Combining these phenomena in a single configuration presents unique opportunities.

Purpose of the Study:

  • To demonstrate a new configuration that integrates birefringence and quasi-phase-matching.
  • To achieve efficient phase-matched nonlinear diffraction in one-dimensional periodically poled nonlinear crystals.
  • To explore the applications of this combined approach for material characterization.

Main Methods:

  • Experimental demonstration of the combined birefringence and quasi-phase-matching configuration.
  • Utilizing one-dimensional periodically poled nonlinear crystals (MgO:LN and congruent LN).
  • Characterization of nonlinear diffraction efficiency dependence on fundamental power, propagation angle, and crystal temperature.

Main Results:

  • Efficient nonlinear diffraction to the first few orders was experimentally achieved.
  • The efficiency was shown to depend on fundamental power, propagation angle, and crystal temperature.
  • Successful demonstration in both MgO doped congruent lithium niobate and congruent lithium niobate.

Conclusions:

  • The integrated birefringence and quasi-phase-matching configuration enables efficient nonlinear diffraction.
  • This method offers enhanced efficiencies compared to previous nonlinear diffraction experiments.
  • The configuration facilitates ferroelectric domain characterization and duty cycle determination in periodically poled crystals.