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Related Experiment Video

Updated: Jul 4, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
10:33

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Color changing and lasing stretchable cholesteric films.

Peter V Shibaev1, Pierre Rivera, Dashiell Teter

  • 1Department of Physics, Fordham University, 441 East Fordham Rd., Bronx, 10458, New York, USA. shibpv@yahoo.com

Optics Express
|June 11, 2008
PubMed
Summary
This summary is machine-generated.

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Novel polymer materials change color and laser properties with mechanical strain, offering new possibilities for tunable chiral lasers. These responsive materials demonstrate significant shifts in light reflection and emission wavelengths.

Area of Science:

  • Materials Science
  • Optics
  • Polymer Chemistry

Background:

  • Responsive polymer materials with tunable optical properties are crucial for advanced applications.
  • Cholesteric liquid crystals offer unique light manipulation capabilities, particularly for laser development.

Purpose of the Study:

  • To develop novel cholesteric polymer materials exhibiting significant changes in reflective properties under mechanical deformation.
  • To investigate the potential of these materials for tunable chiral laser applications.

Main Methods:

  • Synthesis of novel cholesteric polymer materials.
  • Characterization of optical properties, including selective reflection band shifts under uniaxial strain.
  • Fabrication and optical pumping of laser dye-doped materials to achieve lasing.

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Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

Related Experiment Videos

Last Updated: Jul 4, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
10:33

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light
07:56

Preparation of Liquid Crystal Networks for Macroscopic Oscillatory Motion Induced by Light

Published on: September 20, 2017

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

Main Results:

  • Demonstrated a large color change from far-red to blue in the cholesteric materials upon mechanical strain.
  • Observed a shift of the selective reflection band from near-infrared to ultraviolet under uniaxial strain.
  • Achieved strain-tunable lasing with an 80 nm emission interval within the laser dyes' spectrum.

Conclusions:

  • The developed cholesteric polymer materials exhibit unprecedented strain-tunable optical and lasing properties.
  • These findings challenge existing soft material theories and pave the way for novel tunable laser technologies.