Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/6477
Title: | Ultrafast optical nonlinearity and photoacoustic studies on chitosan-boron nitride nanotube composite films |
Authors: | Kuthirummal, Narayanan Philip, Reji Mohan, Athira Jenks, Cassidy Levi-Polyachenko, Nicole |
Keywords: | Chitosan Boron nitride nanotubes |
Issue Date: | Jul-2016 |
Publisher: | Elsevier B. V. |
Citation: | Optics Communications, 2016, Vol.371, p47-50 |
Abstract: | Ultrafast optical nonlinearity in chitosan (CS) films doped with multi-walled boron nitride nanotubes (MWBN) has been investigated using 800 nm, 100 fs laser pulses, employing the open aperture Z-scan technique. Two-photon absorption coefficients (β) of CS–MWBN films have been measured at 800 nm by Z-scan. While chitosan with 0.01% MWBN doping gives a β value of 0.28×10−13 m/W, 1% doping results in a higher β value of 1.43×10−13 m/W, showing nonlinearity enhancement by a factor of 5. These nonlinearity coefficients are comparable to those reported for silver nanoclusters in glass matrix and Pt-PVA nanocomposites, indicating potential photonic applications for MWBN doped chitosan films. Characterization of the synthesized films using Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS) reveals significant interactions between the NH and CO groups of chitosan with boron nitride. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/6477 |
ISSN: | 0030-4018 |
Alternative Location: | http://dx.doi.org/10.1016/j.optcom.2016.03.051 http://adsabs.harvard.edu/abs/2016OptCo.371...47K |
Copyright: | 2016, Elsevier B.V. |
Appears in Collections: | Research Papers (LAMP) |
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2016_OptCom_371_47.pdf Restricted Access | Restricted Access | 364.3 kB | Adobe PDF | View/Open Request a copy |
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