INFLUENCE OF PHOTODEGRADATION ON THE OPTICAL LIMITING PROCESS OF CHLOROPHYLL A

2003 ◽  
Vol 17 (02) ◽  
pp. 83-87 ◽  
Author(s):  
N. M. BARBOSA NETO ◽  
D. S. CORRÊA ◽  
D. S. DOS SANTOS ◽  
L. MISOGUTI ◽  
O. N. OLIVEIRA ◽  
...  

The influence of photodegradation on the optical limiting process of chloroform solutions of chlorophyll A is investigated. Optical limitation experiments were carried out with a frequency-doubled, 10 ns Nd:YAG laser at a 5 Hz repetition rate, as a function of sample degradation. Optical limitation becomes less effective in photodegraded samples, which may be explained by the decrease in the concentration of chlorophyll A molecules. It is concluded that the optical limiting process is mainly related to the reverse saturated absorption mechanism, and contributions from light scattering due to photodegradation and the cavity bubbles appear irrelevant.

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 53785-53796 ◽  
Author(s):  
Gang Zhao ◽  
Yan Feng ◽  
Shanyi Guang ◽  
Hongyao Xu ◽  
Naibo Lin ◽  
...  

The incorporation of styryl/stilbene–fluorene into polyacetylenes not only endowed the polymers with novel near-infrared optical limiting properties based on a two-photon absorption mechanism but good solubility and high thermal stability.


1988 ◽  
Vol 65 (4) ◽  
pp. 275-278 ◽  
Author(s):  
Judith M. Dawes ◽  
Mark G. Sceats

Author(s):  
Yoichiro MARUYAMA ◽  
Kazuyoku TEI ◽  
Masaaki KATO ◽  
Yoshito NIWA ◽  
Sayaka HARAYAMA ◽  
...  

Laser Physics ◽  
2010 ◽  
Vol 20 (9) ◽  
pp. 1783-1786 ◽  
Author(s):  
X. Yu ◽  
C. Wang ◽  
F. Chen ◽  
R. P. Yan ◽  
X. D. Li ◽  
...  

2015 ◽  
Author(s):  
Shutao Dai ◽  
Fei Shi ◽  
Jianhong Huang ◽  
Jing Deng ◽  
Hui Zheng ◽  
...  

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