Thin Films

Optical power limiting and nonlinear absorption effects of polymer functionalized carbon nanotube thin films

[+] Author Affiliations
Liangmin Zhang, Jacquelyn Thomas, Susan D. Allen

Arkansas State University, Department of Chemistry and Physics, Arkansas Center for Laser Applications and Science, State University, Arkansas 72467

You-Xiong Wang

Virginia Polytechnic Institute and State University, Department of Materials Science and Engineering, Fiber & Electro-Optics Research Center, 106 Plantation Road, Blacksburg, Virginia 24061

Opt. Eng. 49(6), 063801 (June 25, 2010). doi:10.1117/1.3456710
History: Received March 21, 2010; Revised May 01, 2010; Accepted May 12, 2010; Published June 25, 2010; October 19, 2010
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Polymer/multiple walled carbon nanotube (MWNT) thin films on glass slide substrates have been fabricated by using the spin-coating method. The optical power limiting performance and nonlinear absorption in these films have been characterized experimentally. Transmission electron micrograph and scanning electron microscope (SEM) techniques have been used to investigate the interaction between polymer molecules and MWNTs. SEM images of polymer functionalized carbon nanotubes show that polymer molecules and MWNTs can interact via π-stacking to increase solubilization of MWNTs, which can be used to explain the optical power limiting effect. For quantitative comparison of different polymer MWNT thin film performance, the open Z-scan technique is employed to measure nonlinear absorption coefficient and optical power limiting effects of different polymer MWNT thin films.

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© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Liangmin Zhang ; Jacquelyn Thomas ; Susan D. Allen and You-Xiong Wang
"Optical power limiting and nonlinear absorption effects of polymer functionalized carbon nanotube thin films", Opt. Eng. 49(6), 063801 (June 25, 2010). ; http://dx.doi.org/10.1117/1.3456710


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