Optical power limiting of fullerenes

Yinglin Song; Xinxian Bao; Feng Li; Xuedong Yang; Xueru Zhang; Ruibo Wang; Chunfei Li

doi:10.1117/12.262983

16 December 1996 Optical power limiting of fullerenes

Yinglin Song, Xinxian Bao, Feng Li, Xuedong Yang, Xueru Zhang, Ruibo Wang, Chunfei Li

Proceedings Volume 2854, Fullerenes and Photonics III; (1996) https://doi.org/10.1117/12.262983
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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 P_in 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.

Citation Download Citation

Yinglin Song, Xinxian Bao, Feng Li, Xuedong Yang, Xueru Zhang, Ruibo Wang, and Chunfei Li "Optical power limiting of fullerenes", Proc. SPIE 2854, Fullerenes and Photonics III, (16 December 1996); https://doi.org/10.1117/12.262983

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