Improved optical limiting in dispersible carbon nanotubes and their metal oxide hybrids

Authors

Benoy Anand, Sri Sathya Sai Institute of Higher Learning
Susana Addo Ntim, New Jersey Institute of Technology
V. Sai Muthukumar, Sri Sathya Sai Institute of Higher Learning
S. Siva Sankara Sai, Sri Sathya Sai Institute of Higher Learning
Reji Philip, Raman Research Institute
Somenath Mitra, New Jersey Institute of Technology

Document Type

Article

Publication Date

11-1-2011

Abstract

The mechanism and performance of optical limiting in carbon nanotubes (CNTs) and their metal oxide hybrids are presented. The mechanism of nonlinear absorption (NLA) in dispersed CNTs was an "effective" three-photon absorption arising due to sequential transitions between the real excited states. The effect of nonlinear scattering was minimal, and it was found that the metal oxide immobilization on the CNT surface does not alter either the mechanism of NLA, or the optical limiting threshold. With limiting thresholds in the range of 0.37-0.46 J/cm², these highly dispersible MWCNTs and their hybrids are excellent optical liming nanocarbons. © 2011 Elsevier Ltd. All rights reserved.

Identifier

80051784242 (Scopus)

Publication Title

Carbon

External Full Text Location

https://doi.org/10.1016/j.carbon.2011.06.086

ISSN

00086223

First Page

4767

Last Page

4773

Issue

14

Volume

49

Recommended Citation

Anand, Benoy; Addo Ntim, Susana; Sai Muthukumar, V.; Siva Sankara Sai, S.; Philip, Reji; and Mitra, Somenath, "Improved optical limiting in dispersible carbon nanotubes and their metal oxide hybrids" (2011). Faculty Publications. 11106.
https://digitalcommons.njit.edu/fac_pubs/11106