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Proceedings Paper

Dynamics of plasmon in graphene oxide
Author(s): Brahmanandam Javvaji; D. Roy Mahapatra; S. Raha
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Paper Abstract

Dynamic effects of plasmon such as scattering with defect boundaries and oxygen impurities in the graphene oxide are investigated. Study of plasmon dynamics helps in understanding electronic, opto-electronic and biological applications of graphene based nanostructures. Tuning or control over such applications is made possible by graphene nanostructure engineering. We have modeled defects with increased smoothing of defect edge in graphene keeping area of the defect constant. Scattering of plasmons in graphene with defects is modeled using an electromagnetic field coupled inter-atomic potential approach with finite element discretization of the atomic vibrational and electromagnetic field degrees of freedom. Our calculations show π+σ plasmon red shifting under sharp defect edges whereas π plasmon show high extinction efficiency. Strong localization of electric fields near the sharp defect edges is observed. Observations on plasmons and its dynamics draws attention in designing novel optoelectronic devices and binders for bio-molecules.

Paper Details

Date Published: 3 April 2015
PDF: 7 pages
Proc. SPIE 9434, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015, 94340M (3 April 2015); doi: 10.1117/12.2085720
Show Author Affiliations
Brahmanandam Javvaji, Indian Institute of Science (India)
D. Roy Mahapatra, Indian Institute of Science (India)
S. Raha, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 9434:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015
Vijay K. Varadan, Editor(s)

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