Manipulation of spectral amplitude and phase with plasmonic nano-structures for information storage

Wei Ting CHEN; Pin Chieh WU; Kuang-Yu YANG; Din Ping TSAI

doi:10.1007/s12200-014-0419-1

Front. Optoelectron. ›› 2014, Vol. 7 ›› Issue (4) : 437 -442. DOI: 10.1007/s12200-014-0419-1

RESEARCH ARTICLE

Manipulation of spectral amplitude and phase with plasmonic nano-structures for information storage

Wei Ting CHEN ¹^,²
, Pin Chieh WU ¹^,²
, Kuang-Yu YANG ³
, Din Ping TSAI ¹^,²^,³^,^*

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Abstract

Optical storage devices, such as compact disk (CD) and digital versatile disc (DVD), provide us a platform for cheap and compact information storage media. Nowadays, information we obtain every day keeps increasing, and therefore how to increase the storage capacity becomes an important issue. In this paper, we reported a method for the increase of the capacity of optical storage devices using metallic nano-structures. Metallic nano-structures exhibit strong variations in their reflectance and/or transmittance spectra accompanied with dramatic optical phase modulation due to localized surface plasmon polariton resonances. Two samples were fabricated for the demonstration of storage capacity enhancement through amplitude modulation and phase modulation, respectively. This work is promising for high-density optical storage.

Keywords

surface plasmon / data storage / localized surface plasmon resonance / Fano resonance

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Wei Ting CHEN,Pin Chieh WU,Kuang-Yu YANG,Din Ping TSAI. Manipulation of spectral amplitude and phase with plasmonic nano-structures for information storage. Front. Optoelectron., 2014, 7(4): 437-442 DOI:10.1007/s12200-014-0419-1