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Related Concept Videos

Mechanisms of Membrane-bending01:15

Mechanisms of Membrane-bending

The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...

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Related Experiment Video

Updated: May 11, 2026

Fabricating Metamaterials Using the Fiber Drawing Method
11:57

Fabricating Metamaterials Using the Fiber Drawing Method

Published on: October 18, 2012

Flexible helices for nonlinear metamaterials.

Alexey P Slobozhanyuk1, Mikhail Lapine, David A Powell

  • 1National Research University of Information Technologies, Mechanics, and Optics (ITMO), St. Petersburg 197101, Russia.

Advanced Materials (Deerfield Beach, Fla.)
|May 23, 2013
PubMed
Summary
This summary is machine-generated.

Researchers created a new metamaterial using flexible metallic helices. This material shows a nonlinear chiral electromagnetic response to incident radiation, enabling power-dependent polarization rotation.

Keywords:
flexible helicesmetamaterialsnonlinear chirality

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Area of Science:

  • Electromagnetism
  • Materials Science
  • Nanotechnology

Background:

  • Metamaterials offer unique electromagnetic properties not found in natural materials.
  • Chiral metamaterials exhibit distinct responses to circularly polarized light.
  • Nonlinear optical effects in metamaterials are crucial for advanced photonic devices.

Purpose of the Study:

  • To fabricate and experimentally verify a novel metamaterial.
  • To investigate the nonlinear chiral electromagnetic response of flexible metallic helices.
  • To explore potential applications in power-dependent polarization control.

Main Methods:

  • Fabrication of a novel metamaterial using flexible metallic helices.
  • Experimental verification of the metamaterial's response to incident radiation.
  • Analysis of the power-dependent change in helix pitch and electromagnetic response.

Main Results:

  • Successful fabrication and experimental verification of the novel metamaterial.
  • Demonstration of nonlinear chiral electromagnetic response due to radiation-induced compression.
  • Observed power-dependent change in the helix pitch.

Conclusions:

  • The novel metamaterial exhibits a significant nonlinear chiral electromagnetic response.
  • The observed phenomenon is linked to the radiation-induced compression of metallic helices.
  • This metamaterial design shows promise for applications in tunable polarization control for electromagnetic waves.