Influence of localized surface plasmons on Pauli blocking and optical limiting in graphene under femtosecond pumping

Bongu, Sudhakara Reddy; Bisht, Prem B.; Namboodiri, Raman C. K.; Nayak, Pranati; Ramaprabhu, Sundara; Kelly, Thomas J.; Fallon, Colm; Costello, John T.

Abstract

The Pauli blocking limit and optical limiting threshold have been found to be modified following silver-nanoparticle decoration of functionalized hydrogen induced exfoliated graphene. Femtosecond Z-scan experiments have been used to measure the Pauli blocking range, optical limiting threshold, and the third order nonlinear susceptibility (χ(3)) values. The observed results have been explained by modified band structure of graphene in the presence of silver nanoparticles and their localized surface plasmon resonances.

Citation

Bongu, S. R., Bisht, P. B., Namboodiri, R. C. K., Nayak, P., Ramaprabhu, S., Kelly, T. J., Fallon, C., & Costello, J. T. (2014). Influence of localized surface plasmons on Pauli blocking and optical limiting in graphene under femtosecond pumping. Journal of applied physics, 116(7), 073101. https://doi.org/10.1063/1.4893547

• Journal Article Type: Article
• Acceptance Date: Aug 7, 2014
• Publication Date: Aug 21, 2014
• Deposit Date: Jul 18, 2016
• Publicly Available Date: Oct 19, 2018
• Journal: Journal of applied physics
• Print ISSN: 0021-8979
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 116
• Issue: 7
• Article Number: ARTN 073101
• Pages: 073101
• DOI: https://doi.org/10.1063/1.4893547
• Keywords: General Physics and Astronomy
• Public URL: https://hull-repository.worktribe.com/output/441152
• Publisher URL: https://aip.scitation.org/doi/10.1063/1.4893547
• Additional Information: This is a copy of an article published in Journal of applied physics, 2014, v.116.
• Contract Date: Jul 18, 2016