Journal
QUANTUM ELECTRONICS
Volume 40, Issue 1, Pages 45-50Publisher
TURPION LTD
DOI: 10.1070/QE2010v040n01ABEH014163
Keywords
optical power limiting; nonlinear scattering; pulse shape; z-scan measurements; laser radiation; carbon nanotube suspension
Funding
- Russian Academy of Sciences
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Nonlinear scattering of 1064-nm laser light in an aqueous suspension of purified carbon nanotubes has been studied in relation to their optical power limiting behaviour using z-scan measurements to simultaneously determine the energy and shape of the transmitted and 90 degrees-scattered pulses. The results indicate that the reduction in transmitted laser pulse energy with increasing incident power density is mainly due to the associated increase in scattered pulse energy. The shape, duration and time shift of the transmitted and 90 degrees - scattered pulses are intricate functions of incident power density. The data are interpreted in terms of thermally induced nonlinear and Rayleigh scattering processes at high and low incident power densities, respectively.
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