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Proceedings Paper

Optical power limiting of fullerenes
Author(s): Yinglin Song; Xinxian Bao; Feng Li; Xuedong Yang; Xueru Zhang; Ruibo Wang; Chunfei Li
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Paper Abstract

Optical power limiting of Fullerenes/PMMA has been studied based on a time-resolved single-beam technique. A nanosecond/picosecond Nd:YAG laser system with pulse width of 8-ns, repetition frequency of 10 Hz and wavelength of 532-nm was employed. Temporal profile of pulse beam is Gaussian profile. When the peak power density of incident laser pulse Pin is 180 WM/cm2, the incident and the transmitted laser pulses versus time are measured using a 4402 Boxcar of 0.4 ns time resolution. The experimental results have shown that, at high irradiance the transient transmitted power density increases nonlinearly and limits to less than 30 MW/cm2. In our experiment, the switching speed of the optical power limiter is less than 5 ns. The measured results can be fitted on the excited state absorption theory. Theoretical results are shown that the excited state absorption saturation occurred at higher peak power.

Paper Details

Date Published: 16 December 1996
PDF: 6 pages
Proc. SPIE 2854, Fullerenes and Photonics III, (16 December 1996); doi: 10.1117/12.262983
Show Author Affiliations
Yinglin Song, Harbin Institute of Technology (China)
Xinxian Bao, Harbin Institute of Technology (China)
Feng Li, Harbin Institute of Technology (China)
Xuedong Yang, Harbin Institute of Technology (China)
Xueru Zhang, Harbin Institute of Technology (China)
Ruibo Wang, Harbin Institute of Technology (China)
Chunfei Li, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 2854:
Fullerenes and Photonics III
Zakya H. Kafafi, Editor(s)

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