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|Title:||Time-resolved analysis of nonlinear optical limiting for laser synthesized carbon nanoparticles|
|Citation:||Chen, G.X., Hong, M.H. (2010-11). Time-resolved analysis of nonlinear optical limiting for laser synthesized carbon nanoparticles. Applied Physics A: Materials Science and Processing 101 (3) : 467-470. ScholarBank@NUS Repository. https://doi.org/10.1007/s00339-010-5890-y|
|Abstract:||Nonlinear optical limiting materials have attracted much research interest in recent years. Carbon nanoparticles suspended in liquids show a strong nonlinear optical limiting function. It is important to investigate the nonlinear optical limiting process of carbon nanoparticles for further improving their nonlinear optical limiting performance. In this study, carbon nanoparticles were prepared by laser ablation of a carbon target in tetrahydrofuran (THF). Optical limiting properties of the samples were studied with 532-nm laser light, which is in the most sensitive wavelength band for human eyes. The shape of the laser pulse plays an important role for initializing the nonlinear optical limiting effect. Time-resolved analysis of laser pulses discovered 3 fluence stages of optical limiting. Theoretical simulation indicates that the optical limiting is initialized by a near-field optical enhancement effect. © 2010 Springer-Verlag.|
|Source Title:||Applied Physics A: Materials Science and Processing|
|Appears in Collections:||Staff Publications|
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