Tunable Surface Plasmon Resonances Based on Chromium Disk Array Containing Liquid Crystals

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概要

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• The tunable surface plasmon resonances of an indium tin oxide (ITO) cell embedded with a chromium disk array and liquid crystals (LCs) have been investigated. The chromium disk array with a diameter of 300 nm and a period of 600 nm was fabricated on one ITO film and the LCs were infiltrated into the ITO cell. The effective refractive indices of the sandwiched LCs may be tuned from 1.51 to 1.73 by applying external electrical fields across the two ITO films. The optical transmission spectra reveal two resonances that may be modulated from 482 to 575 nm and from 670 to 723 nm within the range of tuning. In addition, the tunable surface plasmon resonances illustrate hysteresis behaviors. These results are identified to be associated with the alignment of LCs that is modulated by the electrical fields.

• 2011-09-25

著者

• Wu Jong-ching

  Department Of Physics National Changhua University Of Education

• Lee Huang-ming

  Department Of Materials Science And Engineering Microelectronics And Information Systems Research Ce

• Lin Yu-chun

  Department Of Pediatric Cardiology Kaohsiung Chang Gung Memorial Hospital And Chang Gung University College Of Medicine

• Shyu Jia-Hong

  Department of Physics, National Changhua University of Education, Changhua 500, Taiwan

• Hsieh Chia-Ting

  Department of Physics, National Changhua University of Education, Changhua 500, Taiwan

• Huang Chi-Yen

  Graduate Institute of Photonics and Department of Physics, National Changhua University of Education, Changhua, Taiwan 500, Republic of China

• Lee Huang-Ming

  Department of Physics, National Changhua University of Education, Changhua 500, Taiwan

• Lin Yu-Chun

  Department of Physics, National Changhua University of Education, Changhua 500, Taiwan

• Huang Chi-Yen

  Graduate Institute of Photonics, National Changhua University of Education, Changhua 500, Taiwan

• Huang Chi-Yen

  Graduate Institute of Opto-electronic Engineering, National Chang Hua University of Education, Changhua, Taiwan 500, ROC

• Wu Jong-Ching

  Department of Physics, National Changhua University of Education, Changhua 500, Taiwan

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