Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1786371
Title: Ultrafast absorptive and refractive nonlinearities in multiwalled carbon nanotube films
Authors: Elim, H.I. 
Ji, W. 
Ma, G.H. 
Lim, K.Y.
Sow, C.H. 
Huan, C.H.A. 
Issue Date: 6-Sep-2004
Citation: Elim, H.I., Ji, W., Ma, G.H., Lim, K.Y., Sow, C.H., Huan, C.H.A. (2004-09-06). Ultrafast absorptive and refractive nonlinearities in multiwalled carbon nanotube films. Applied Physics Letters 85 (10) : 1799-1801. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1786371
Abstract: The absorptive and refractive nonlinearities in a film of multiwalled carbon nanotubes were investigated using femtosecond laser pulses at a wavelength range from 720 to 780 nm. The absorptive and refractive nonlinearities were found to be of negative and cubic nature in laser irradiance range, as shown by the z-scans. The magnitude of third-order nonlinear susceptibility was found to be about 10-11 esu. The results show that nonresonant negative nonlinearities exhibits relaxationn time of ∼2 ps.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/90444
ISSN: 00036951
DOI: 10.1063/1.1786371
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