Coherent two-photon absorption quenching of short laser pulses with–phaseamplitude irregularities

2003 ◽  
Vol 20 (12) ◽  
pp. 2569
Author(s):  
Itay Gur-Arie ◽  
Alon Shoham ◽  
Shimshon Bar-Ad
Keyword(s):  
Laser Pulses ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Short Laser Pulses

scholarly journals Spectral intensity and phase changes of short laser pulses by two-photon absorption

2019 ◽  
Vol 66 (8) ◽  
pp. 886-890 ◽  
Author(s):  
Tsogvoo Khos-Ochir ◽  
Kim Myung-Whun ◽  
Purevdorj Munkhbaatar
Keyword(s):  
Laser Pulses ◽  
Phase Changes ◽  
Spectral Intensity ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Short Laser Pulses

Plasmon-Enhanced Two-Photon Absorption of Infrared Femtosecond Laser Pulses in Thin Gold Films

JETP Letters ◽  
2019 ◽  
Vol 109 (6) ◽  
pp. 382-386 ◽  
Author(s):  
S. I. Kudryashov ◽  
P. A. Danilov ◽  
S. G. Bezhanov ◽  
A. A. Rudenko ◽  
A. A. Ionin ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Photon Absorption ◽  
Gold Films ◽  
Two Photon Absorption ◽  
Two Photon

Femtosecond-laser direct writing for spatially localized synthesis of PPV

2017 ◽  
Vol 5 (14) ◽  
pp. 3579-3584 ◽  
Author(s):  
Oriana I. Avila ◽  
Juliana M. P. Almeida ◽  
Franciele R. Henrique ◽  
Ruben D. Fonseca ◽  
Gustavo F. B. Almeida ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Photon Absorption ◽  
Direct Laser Writing ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Thermal Reactions ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Direct Laser ◽  
Fs Laser

Conversion of PTHT into PPV is achieved by direct laser writing. Fs-laser pulses induce photo-thermal reactions due to two-photon absorption, resulting in the microscopic control of PPV polymerization. Such methodology is a promising way towards the fabrication of arbitrary polymeric microcircuits.

scholarly journals Determination of the contributions of degenerate and non-degenerate two-photon absorption response in silicon avalanche photodiode for infrared photon detection

2020 ◽  
Author(s):  
Guangjian Xu ◽  
Xinyi Ren ◽  
Qucheng Miao ◽  
Ming Yan ◽  
Haifeng Pan ◽  
...  
Keyword(s):  
Detection Efficiency ◽  
Laser Pulses ◽  
Avalanche Photodiode ◽  
Photon Absorption ◽  
Photon Detection ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Pulse Photon ◽  
Quantum Detection ◽  
Infrared Photon

Abstract The study of non-linear interactions in semiconductor photo-electronic devices to achieve effective and fast photon identification is an ongoing and important task. We investigated the specific contribution of degenerate and non-degenerate two-photon absorption (D-TPA and ND-TPA) response in silicon avalanche photodiode (Si-APD) for infrared photon detection at room temperature. We experimentally demonstrated that when the two laser pulses overlapped, the average D-TPA quantum detection efficiencies at 1800 nm, and that at 1550 nm were measured as 3.3×10 -16 counts•pulse/photon 2 , 4.3×10 -15 counts•pulse/photon 2 , respectively. And the ND-TPA quantum detection efficiency of 1800 nm and 1550 nm was measured to be 7.9×10 -16 counts•pulse/photon 2 . This study provides a solution for the practical infrared photon detection devices based on TPA effect in Si-APDs.

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