DC two-photon absorption signal offset and intensity autocorrelation amplitude comparison in the femtosecond pulse focusing of lenses with spherical aberration

2021 ◽  
Author(s):  
José Agustín Moreno-Larios ◽  
Martha Rosete-Aguilar ◽  
Oscar G. Rodríguez-Herrera ◽  
Jesús Garduño-Mejía
Keyword(s):  
Femtosecond Pulse ◽  
Spherical Aberration ◽  
Photon Absorption ◽  
Absorption Signal ◽  
Two Photon Absorption ◽  
Two Photon

Efficient Two-Photon Absorbing Chromophores with Fine-Tuned л-Bridges

2002 ◽  
Vol 725 ◽  
Author(s):  
Lixin Zheng ◽  
Takafumi Sassa ◽  
Alex K-Y. Jen
Keyword(s):  
Cross Sections ◽  
Femtosecond Pulse ◽  
Twist Angle ◽  
Photon Absorption ◽  
Pulse Excitation ◽  
Fluorescence Technique ◽  
Structural Variations ◽  
Electronic Nature ◽  
Two Photon Absorption ◽  
Two Photon

AbstractA new series of symmetric two-photon absorbing chromophores with various л-bridges were synthesized. It has been shown that the spectra of two-photon absorption and two-photon induced fluorescence can be fined tuned by structural variations in the electronic nature and twist angle of л-bridges of D-л-D type chromophores. These chromophores exhibited large twophoton absorption cross-sections (up to 1800 GM), which were determined by two-photon induced fluorescence technique using femtosecond pulse excitation. The colors of two-photon pumped emission of these chromophores varied from blue to red (433 ∼ 604 nm) as the structure of л-bridges changed.

SUBSTITUENT EFFECT ON TWO-PHOTON ABSORPTION PROPERTIES OF FLUORENE DERIVATIVES

2004 ◽  
Vol 13 (03n04) ◽  
pp. 475-479 ◽  
Author(s):  
JUN KAWAMATA ◽  
MASAHARU AKIBA ◽  
YOSHIO INAGAKI ◽  
TAKEHARU TANI ◽  
AKINORI HARADA
Keyword(s):  
Cross Sections ◽  
Substituent Effect ◽  
Femtosecond Pulse ◽  
Substituent Effects ◽  
Photon Absorption ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Ti:Sapphire Laser ◽  
Two Photon ◽  
The Relationship

Two novel fluorene derivatives having cationic substituents were synthesized. Two-photon absorption (TPA) properties of the derivatives were evaluated using the fluorescence-based technique with a femtosecond pulse emitted from a Ti:sapphire laser. Maximum TPA cross-sections of the compounds were estimated from the TPA spectra. Based on the results, the relationship between the TPA cross-sections and the substituent effects of the derivatives were discussed.

Two-photon absorption in diamond and its application to ultraviolet femtosecond pulse-width measurement

1991 ◽  
Vol 16 (7) ◽  
pp. 499 ◽  
Author(s):  
J. I. Dadap ◽  
G. B. Focht ◽  
D. H. Reitze ◽  
M. C. Downer
Keyword(s):  
Pulse Width ◽  
Femtosecond Pulse ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Width Measurement

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
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