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

doi:10.1143/JJAP.50.09MG03

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 journal › Article

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 language	English
Article number	09MG03
Journal	Japanese Journal of Applied Physics
Volume	50
Issue number	9 PART 2
DOIs	https://doi.org/10.1143/JJAP.50.09MG03
Publication status	Published - 2011 Sep 1

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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Shyu, J. H., Lin, Y. C., Lee, H. M., Hsieh, C. T., Huang, C-Y., & Wu, J-C. (2011). Tunable surface plasmon resonances based on chromium disk array containing liquid crystals. Japanese Journal of Applied Physics, 50(9 PART 2), [09MG03]. https://doi.org/10.1143/JJAP.50.09MG03

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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.",

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AU - Wu, Jong-Ching

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