Study on optical nonlinearity and optical limiting property of porphyrin-oxygenated carbon nanomaterial blends

• Published in: Optoelectronics letters Vol. 11; no. 3; pp. 161 - 165
• Main Author: 温浩 张校亮 刘智波 鄢小卿 李晓春 田建国
• Format: Journal Article
• Language: English
• Published: Tianjin Tianjin University of Technology 01.05.2015
• Subjects: Lasers; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; 光学特性; 共混物; 卟啉; 多壁碳纳米管; 氧化物; 碳纳米材料; 非线性光学; 高能量密度; Reverse Saturable Absorption; Chemical Physic Letter; Porphyrin; Graphene Oxide; Optical Limit
• ISSN: 1673-1905; 1993-5013
• DOI: 10.1007/s11801-015-5047-5

Stable porphyrin-oxygenated carbon nanomaterial dispersions were prepared by blending porphyrin solutions with hy- droxyl groups modified multi-walled carbon nanotubes （MWNTs-OH） and graphene oxide （GO） dispersions, respectively. Optical nonlinearity and optical limiting （OL） property of these blends are investigated in nanosecond regime. Results show that the OL performance of the blends can be tuned by changing the concentrations ratio of porphyrin and oxygenated carbon nanomaterials. The high concentration of oxygenated carbon nanomaterial leads to the poor OL performance. However, with the moderate concentration, the blends exhibit the low threshold value of OL and the en- hanced OL performance at high fluence region. The superior OL performance can be attributed to complementary mechanisms and possible photoinduced electron or energy transfer between porphyrin moiety and oxygenated carbon nanomaterials.