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Related Experiment Video

Updated: May 10, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

Solid-state reversible quadratic nonlinear optical molecular switch with an exceptionally large contrast.

Zhihua Sun1, Junhua Luo, Shuquan Zhang

  • 1Key Laboratory of Optoelectronic, Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, P.R. China.

Advanced Materials (Deerfield Beach, Fla.)
|July 2, 2013
PubMed
Summary

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A novel solid-state switch exhibits remarkable nonlinear optical (NLO) switching with a high on/off contrast. This breakthrough, driven by molecular motion, paves the way for advanced optical devices.

Area of Science:

  • Materials Science
  • Optics and Photonics
  • Chemistry

Background:

  • Nonlinear optical (NLO) materials are crucial for advanced optical technologies.
  • Developing efficient and reversible NLO switches remains a significant challenge.
  • Existing switches often lack the required performance metrics for practical applications.

Purpose of the Study:

  • To investigate a novel solid-state reversible quadratic NLO switch.
  • To characterize its switching behavior and NLO coefficients.
  • To explore the role of molecular motion and anionic ordering in NLO switching.

Main Methods:

  • Fabrication and characterization of a solid-state reversible quadratic NLO switch.
  • Measurement of NLO coefficients and switching contrast.

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Quasi-light Storage for Optical Data Packets
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Patterning via Optical Saturable Transitions - Fabrication and Characterization
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Published on: December 11, 2014

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Last Updated: May 10, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Patterning via Optical Saturable Transitions - Fabrication and Characterization
08:19

Patterning via Optical Saturable Transitions - Fabrication and Characterization

Published on: December 11, 2014

  • Analysis of molecular motion and anionic ordering mechanisms.

    • Main Results:

    • The switch demonstrated exceptional nonlinear optical (NLO) switching behavior.
    • An extremely large on/off contrast of approximately 35 was achieved.
    • High NLO coefficients were observed, attributed to fast molecular motion and anionic ordering.

    Conclusions:

    • Solid-state reversible quadratic NLO switches can exhibit outstanding performance.
    • Fast molecular motion and anionic ordering are key factors for high-performance NLO switching.
    • This work provides a foundation for designing novel second-harmonic-generation switches utilizing molecular motion.