scholarly journals Photoluminescence upconversion atGaAs/InGaP2interfaces driven by a sequential two-photon absorption mechanism

2016 ◽  
Vol 93 (23) ◽  
Author(s):  
N. P. Hylton ◽  
T. F. Hinrichsen ◽  
A. R. Vaquero-Stainer ◽  
M. Yoshida ◽  
A. Pusch ◽  
...  
Keyword(s):  
Photon Absorption ◽  
Absorption Mechanism ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals Polyfluorenylacetylene for near-infrared laser protection: polymer synthesis, optical limiting mechanism and relationship between molecular structure and properties

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 53785-53796 ◽  
Author(s):  
Gang Zhao ◽  
Yan Feng ◽  
Shanyi Guang ◽  
Hongyao Xu ◽  
Naibo Lin ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Near Infrared ◽  
Optical Limiting ◽  
High Thermal Stability ◽  
Photon Absorption ◽  
Structure And Properties ◽  
Absorption Mechanism ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Good Solubility

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.

Optical limiting properties and ultrafast response of three oligomers based on 1,3,5-triazine

2018 ◽  
Vol 27 (03) ◽  
pp. 1850026 ◽  
Author(s):  
Yaochuan Wang ◽  
Yizhuo Wang ◽  
Guiqiu Wang ◽  
Dajun Liu
Keyword(s):  
Cross Sections ◽  
Optical Limiting ◽  
Photon Absorption ◽  
Absorption Cross ◽  
Absorption Mechanism ◽  
Pump Probe ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Transfer State ◽  
Probe Measurements

Three tri-branched oligomers based on 1,3,5-triazine with large two-photon absorption cross-sections and good optical limiting properties were investigated by UV–Visible, femtosecond Z-scan and one/two-color pump-probe measurements. The two-photon absorption cross-section results measured at a wavelength of 800[Formula: see text]nm were found decreasing with the number of fluorene groups in each branches. The optical limiting properties were also investigated and a two-photon absorption mechanism was proposed. One/two-color pump-probe measurements were also used to further investigate the ultrafast responses of these tri-branched oligomers. The ultrafast response results indicated that after excitation, the tri-branched oligomers will first undergo a fast process to form an intramolecular charge transfer state followed by relaxation of the intramolecular charger transfer state of approximately several hundred ps.

Second order interference in two photon absorption

1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT
Keyword(s):  
Second Order ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Studies of Two Photon Absorption in Heavy Metal Oxide Based Glasses

2010 ◽  
Vol 25 (3) ◽  
pp. 289-292 ◽  
Author(s):  
Fei-Fei CHEN ◽  
Tie-Feng XU ◽  
Shi-Xun DAI ◽  
Qiu-Hua NIE ◽  
Xiang SHEN ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Oxide ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon
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