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Related Experiment Video

Updated: May 3, 2026

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
10:16

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

Published on: January 8, 2016

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Metal nanoparticle based all-optical photothermal light modulator.

André Heber1, Markus Selmke, Frank Cichos

  • 1Molecular Nanophotonics Group, Institute of Experimental Physics I, Universität Leipzig , 04103 Leipzig, Germany.

ACS Nano
|January 21, 2014
PubMed
Summary

We demonstrate a novel method for light intensity control using heat from plasmonic nanoparticles. This process manipulates light via a dissipative mechanism in liquid crystals, enabling light-by-light modulation.

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Area of Science:

  • Photonics and Materials Science
  • Optics and Liquid Crystal Physics

Background:

  • Controlling light with light is crucial for optical devices.
  • Dissipative processes offer unique pathways for light manipulation.

Purpose of the Study:

  • To present a simple scheme for light intensity modulation using a dissipative process.
  • To demonstrate light-by-light control mediated by heat from plasmonic nanoparticles.

Main Methods:

  • Utilizing heat from optically excited plasmonic metal nanoparticles to control bubble size in a nematic liquid crystal film.
  • Designing the nematic film as a zero-order half-wave plate for polarization control.
  • Employing a probe light and an analyzing polarizer to detect transmitted light intensity changes.

Main Results:

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Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating
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Related Experiment Videos

Last Updated: May 3, 2026

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
10:16

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties

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12.5K
Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System
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Construction and Operation of a Light-driven Gold Nanorod Rotary Motor System

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Multifunctional Hybrid Fe2O3-Au Nanoparticles for Efficient Plasmonic Heating
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  • The heat generated by nanoparticles controllably expands an isotropic bubble.
  • The bubble's growth alters the liquid crystal's half-wave plate properties.
  • This disturbance leads to the transmission of the probe light, modulating its intensity.

Conclusions:

  • Dissipative processes can be effectively harnessed for light-by-light control.
  • This method offers a simple and efficient way to manipulate light intensity.
  • The findings open possibilities for novel optical modulators and switches.