Communication

Light-Driven Plasmonic Switches Based on Au Nanodisk Arrays and Photoresponsive Liquid Crystals†

  1. Vincent K. S. Hsiao,
  2. Yue Bing Zheng,
  3. Bala Krishna Juluri,
  4. Tony Jun Huang*

Article first published online: 5 AUG 2008

DOI: 10.1002/adma.200800045

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 18, pages 3528–3532, September 17, 2008

Additional Information

How to Cite

Hsiao, V. K. S., Zheng, Y. B., Juluri, B. K. and Huang, T. J. (2008), Light-Driven Plasmonic Switches Based on Au Nanodisk Arrays and Photoresponsive Liquid Crystals. Adv. Mater., 20: 3528–3532. doi: 10.1002/adma.200800045

Author Information

  1. Department of Engineering Science and Mechanics, The Pennsylvania State University University Park, PA 16802 (USA)

*Department of Engineering Science and Mechanics, The Pennsylvania State University University Park, PA 16802 (USA).

  1. †

    This work was supported by the Air Force Office of Scientific Research (AFOSR), an NSF NIRT grant (ECCS-0609128), and the Penn State Center for Nanoscale Science (MRSEC). Components of this work were conducted at the Penn State node of the NSF-funded National Nanotechnology Infrastructure Network.

Publication History

  1. Issue published online: 5 SEP 2008
  2. Article first published online: 5 AUG 2008
  3. Manuscript Revised: 18 FEB 2008
  4. Manuscript Received: 7 JAN 2008

Funded by

  • Air Force Office of Scientific Research (AFOSR)
  • NSF
  • NIRT. Grant Number: ECCS-0609128
  • Penn State Center for Nanoscale Science (MRSEC)

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Keywords:

  • Switches;
  • Surface plasmon resonance;
  • Liquid crystals;
  • Azobenzenes
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An optically controlled plasmonic switch that uses Au nanodisk arrays embedded in azobenzene-doped, photoresponsive liquid crystals (LCs) is reported. The switch utilizes the photo-induced phase transition of azobenzene-doped LCs to alter the localized surface plasmon resonance (LSPR) of the Au nanodisks. The experimental modulation of the LSPR matches well with theoretical calculations. The influence of the angle of the incident light, power of the pump light, and wavelength of the probe light are also investigated.

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