Nonlinear optical limiters of pulsed laser radiation based on carbon-containing nanostructures in viscous and solid matrices

作者：Belousova I M; Videnichev D A; Volynkin V M; Evstropiev S K^*; Kislyakov I M; Murav'ova T D; Rakov E G

来源：Polymers for Advanced Technologies, 2014, 25(9): 1008-1013.

DOI：10.1002/pat.3343

• fullerenes
• astralens
• single-wall carbon-containing nanotubes
• carbon nanofibers
• sol-gel matrices
• polymer matrices

Results of the study of optical limiters of pulsed laser radiation based on nonlinear effects in carbon nanostructures placed into viscous and solid matrices are presented. A nonlinear optical limiting was studied by nanomaterials based on multi-wall polyhedral carbon nanostructures (astralens) placed in a sol-gel matrix. Similar studies for single-wall and multi-wall carbon-containing nanotubes placed in polymer matrices with various viscosities were performed. No additional mechanism of optical limiting due to electron structure of single-wall carbon-containing nanotubes at their introduction into viscous and solid composite media was found. An influence of polymer matrix composition containing carbon nanotubes (CNTs) on a threshold and ratio of attenuation of laser radiation was demonstrated. The best limiting characteristics were observed at placing CNT into polymethylsiloxane matrix. An effect of "self-healing" of a medium after laser radiation passage through high viscous liquids was obtained. The high parameters of nonlinear optical limiting (the threshold of limiting 10(-5) J, ratio of attenuation 10(3)) achieved for the composite material CNT (HiPCO High-Pressure Carbon Monoxide) and carbon nanofibers in high viscous and solid polymethylsiloxane media allow the design of protective filters for laser radiation operating in wide spectral range.

• 出版日期2014-9
• 单位北京化工大学