Tunable surface plasmon resonances based on chromium disk array containing liquid crystals

Jia Hong Shyu, Yu Chun Lin, Huang Ming Lee, Chia Ting Hsieh, Chi-Yen Huang, Jong-Ching Wu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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 300nm and a period of 600nm 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 575nm and from 670 to 723nm 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.

Original languageEnglish
Article number09MG03
JournalJapanese Journal of Applied Physics
Volume50
Issue number9 PART 2
DOIs
Publication statusPublished - 2011 Sep 1

Fingerprint

Surface plasmon resonance
Tin oxides
surface plasmon resonance
indium oxides
Liquid crystals
Indium
tin oxides
chromium
Chromium
liquid crystals
Oxide films
oxide films
Light transmission
cells
Hysteresis
Refractive index
Tuning
hysteresis
alignment
tuning

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Shyu, Jia Hong ; Lin, Yu Chun ; Lee, Huang Ming ; Hsieh, Chia Ting ; Huang, Chi-Yen ; Wu, Jong-Ching. / Tunable surface plasmon resonances based on chromium disk array containing liquid crystals. In: Japanese Journal of Applied Physics. 2011 ; Vol. 50, No. 9 PART 2.
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Tunable surface plasmon resonances based on chromium disk array containing liquid crystals. / Shyu, Jia Hong; Lin, Yu Chun; Lee, Huang Ming; Hsieh, Chia Ting; Huang, Chi-Yen; Wu, Jong-Ching.

In: Japanese Journal of Applied Physics, Vol. 50, No. 9 PART 2, 09MG03, 01.09.2011.

Research output: Contribution to journalArticle

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AB - 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 300nm and a period of 600nm 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 575nm and from 670 to 723nm 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.

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