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Proceedings Paper

Modification of UV surface plasmon resonances in aluminum hole-arrays with graphene
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Paper Abstract

Tunable UV devices can enable enhanced functionalities such as multiplexed sensing, wavelength-tunable light emission and so on. Interestingly, in the UV range, graphene shows a tunable optical absorption due to pi-plasmon resonance. In this work we study the UV transmission through monolayer graphene films transferred on top of aluminum hole-arrays. Transmittance though the hole-array was measured before and after graphene transfer. Interaction of graphene pi-plasmons with surface plasmon resonances leads to strong wavelength shifts, i.e. the surface plasmon resonance at the top-interface red-shifts when graphene is added. Furthermore, it is observed that maximum shift occurs in the 280 to 310 nm wavelength range. This is attributed to an enhanced graphene optical conductivity owed to pi-plasmons.

Paper Details

Date Published: 25 August 2017
PDF: 5 pages
Proc. SPIE 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV, 103461H (25 August 2017); doi: 10.1117/12.2274685
Show Author Affiliations
Yunshan Wang, The Univ. of Utah (United States)
Sourangsu Banerji, The Univ. of Utah (United States)
Jieying Mao, The Univ. of Utah (United States)
Sara Arezoomandan, The Univ. of Utah (United States)
Berardi Sensale-Rodriguez, The Univ. of Utah (United States)
Steve Blair, The Univ. of Utah (United States)


Published in SPIE Proceedings Vol. 10346:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV
Din Ping Tsai; Takuo Tanaka, Editor(s)

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