Two-photon absorption and short pulse stimulated recombination in AgGaSe2

1980 ◽  
Vol 33 (3) ◽  
pp. 297-300 ◽  
Author(s):  
A. Miller ◽  
G.S. Ash
Keyword(s):  
Short Pulse ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals A generic model for the study of supercontinuum generation in graphene-covered nanowires

2021 ◽  
Author(s):  
Nicolas Linale ◽  
Pablo I. Fierens ◽  
Nathalie Vermeulen ◽  
Diego Fernando Grosz
Keyword(s):  
Pulse Propagation ◽  
Short Pulse ◽  
Photon Number ◽  
Supercontinuum Generation ◽  
Photon Absorption ◽  
Generic Model ◽  
Graphene Layers ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Integrated Optical

Abstract We study supercontinuum generation (SC) in graphene-covered nanowires based on a generic model that correctly accounts for the evolution of the photon number under Kerr and two-photon absorption processes, and the influence of graphene is treated within the framework of saturable photoexcited-carrier refraction. We discuss the role of the various effects on the generation of supercontinuum by a thorough analysis of short-pulse propagation in two different kinds of graphene-covered nanowires, one made of silicon nitride and the other made of silicon. Finally, we discuss the effect of stacking graphene layers as a means to enhance SC generation with pulse powers compatible with those in integrated optical devices.

Thermal Analysis of Multiphoton Absorption at 193 nm in Volume-Absorbing Glass

2001 ◽  
Vol 124 (2) ◽  
pp. 391-394 ◽  
Author(s):  
Z. M. Zhang and ◽  
D. H. Chen
Keyword(s):  
Short Pulse ◽  
Glass Plate ◽  
Damage Threshold ◽  
Photon Absorption ◽  
Temperature History ◽  
Surface Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Pulse Excimer Laser ◽  
History Of

Two-photon absorption in volume-absorbing materials may be significant for high-power, short-pulse excimer laser irradiation. In the present work, the effects of two-photon absorption on the laser intensity propagation and the penetration depth are investigated. The temperature history of a glass plate during pulsed ultraviolet (UV) laser heating is predicted. The results show that the two-photon absorption can compress the volume-absorbing effect to surface absorption and increase the peak temperature on the glass surface. This will reduce the damage threshold, increase the energy loss, and reduce the accuracy of pulsed-laser calorimeters.

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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