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Conferences > NLO > 2017 > NM2B > NM2B.6

Phonon-assisted plasmon induced transparency in graphene nanostructures

Meg Mahat, Yuri Rostovtsev, Sanjay Karna, and Arup Neogi

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Abstract

The absorption due to phonon vibrations in graphene oxide quantum dots (GO-QDs) has been modified by localized plasmons induced by Ag nanoparticles (NPS). The interference of phonons and plasmons results in coherent interaction that leads to the formation of “dark states” and “coherent population trapping” related to Fano like effect. A quantum optical theory is used to qualitatively explain the differential absorption spectra measured using pump-probe spectroscopy demonstrating the formation of dark states.

© 2017 Optical Society of America

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