
Proceedings Paper
Extremely high near field enhancement in a novel plasmonic nano material used for photovoltage generationFormat | Member Price | Non-Member Price |
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Paper Abstract
Enhancement of localized electric field near metal (plasmonic) nanostructures can have various
interesting applications in sensing, imaging, photovoltage generation etc., for which significant
efforts are aimed towards developing plasmonic systems with well designed and large
electromagnetic response. In this paper, we discuss the wafer scale fabrication and optical
characterization of a unique three dimensional plasmonic material. The near field enhancement in
the visible range of the electromagnetic spectrum obtained in these structures (order of 106), is close
to the fundamental limit that can be obtained in this and similar EM field enhancement schemes. The
large near field enhancement has been reflected in a huge Raman signal of graphene layer in close
proximity to the plasmonic system, which has been validated with FEM simulations. We have
integrated graphene photodetectors with this material to obtain record photovoltage generation, with
responsivity as high as A/W. As far as we know, this is the highest sensitivity obtained in any
plasmonic-graphene hybrid photodetection system till date.
Paper Details
Date Published: 27 February 2015
PDF: 9 pages
Proc. SPIE 9371, Photonic and Phononic Properties of Engineered Nanostructures V, 93711G (27 February 2015); doi: 10.1117/12.2078859
Published in SPIE Proceedings Vol. 9371:
Photonic and Phononic Properties of Engineered Nanostructures V
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)
PDF: 9 pages
Proc. SPIE 9371, Photonic and Phononic Properties of Engineered Nanostructures V, 93711G (27 February 2015); doi: 10.1117/12.2078859
Show Author Affiliations
Debadrita Paria, Indian Institute of Science (India)
Kallol Roy, Indian Institute of Science (India)
Shishir Kumar, Indian Institute of Science (India)
Haobijam Johnson Singh, Indian Institute of Science (India)
Kallol Roy, Indian Institute of Science (India)
Shishir Kumar, Indian Institute of Science (India)
Haobijam Johnson Singh, Indian Institute of Science (India)
Srinivasan Raghavan, Indian Institute of Science (India)
Arindam Ghosh, Indian Institute of Science (India)
Ambarish Ghosh, Indian Institute of Science (India)
Arindam Ghosh, Indian Institute of Science (India)
Ambarish Ghosh, Indian Institute of Science (India)
Published in SPIE Proceedings Vol. 9371:
Photonic and Phononic Properties of Engineered Nanostructures V
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)
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