Switching the Localized Surface Plasmon Resonance of Single Gold Nanorods with a Phase-Change Material and the Implementation of a Cellular Automata Algorithm Using a Plasmon Particle Array
Author(s) -
Takashi Hira,
Takayuki Uchiyama,
Kenta Kuwamura,
Yuya Kihara,
Tasuku Yawatari,
Toshiharu Saiki
Publication year - 2015
Publication title -
advances in optical technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.124
H-Index - 25
eISSN - 1687-6407
pISSN - 1687-6393
DOI - 10.1155/2015/150791
Subject(s) - nanorod , surface plasmon resonance , materials science , plasmon , particle (ecology) , cellular automaton , localized surface plasmon , phase (matter) , nanotechnology , phase change , surface plasmon , optoelectronics , nanoparticle , computer science , physics , algorithm , oceanography , engineering physics , quantum mechanics , geology
We investigate the modulation of the localized surface plasmon resonance (LSPR) of a gold nanorod (AuNR) using a GeSbTe film as an active medium. We demonstrate high-contrast switching of LSPR in an AuNR/GST/Au thin film sandwich structure upon phase change. To go beyond this single-particle switching functionality, we consider a plasmon particle system interacting with a phase-change material (PCM) to discuss the possibility of parallel processing devices with memory functionality, exploiting the plasticity and threshold behavior that are inherent characteristics of PCMs. We demonstrate that the temporal and spatial evolution of a plasmon-PCM array system can be equivalent to a cellular automata algorithm
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