Two‐photon absorption studies of diphenylbutadiene: The location of a 1Ag excited state

1973 ◽  
Vol 59 (10) ◽  
pp. 5740-5741 ◽  
Author(s):  
Robert L. Swofford ◽  
W. M. McClain
Keyword(s):  
Excited State ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Absorption Studies

New two-photon absorption benzotriazole–coumarin dyads: the evidence of internal proton transfer in the excited state

2015 ◽  
Vol 56 (1) ◽  
pp. 236-242 ◽  
Author(s):  
Yulong Gong ◽  
Yao Lu ◽  
Zhenqiang Wang ◽  
Shengtao Zhang ◽  
Ziping Luo ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals Ultrafast processes triggered by one- and two-photon excitation of a photochromic and luminescent hydrazone

2019 ◽  
Vol 15 ◽  
pp. 2438-2446 ◽  
Author(s):  
Alessandro Iagatti ◽  
Baihao Shao ◽  
Alberto Credi ◽  
Barbara Ventura ◽  
Ivan Aprahamian ◽  
...  
Keyword(s):  
Excited State ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Transient Absorption ◽  
Solvent Polarity ◽  
Photon Absorption ◽  
Absorption Cross ◽  
Time Resolved ◽  
Two Photon Absorption ◽  
Two Photon

In this work we apply a combination of steady state and time resolved luminescence and absorption spectroscopies to investigate the excited-state dynamics of a recently developed molecular photoswitch, belonging to the hydrazone family. The outstanding properties of this molecule, involving fluorescence toggling, bistability, high isomerization quantum yield and non-negligible two-photon absorption cross section, make it very promising for numerous applications. Here we show that the light induced Z/E isomerization occurs on a fast <1 ps timescale in both toluene and acetonitrile, while the excited state lifetime of the Z-form depends on solvent polarity, suggesting a partial charge transfer nature of its low lying excited state. Time-resolved luminescence measurements evidence the presence of a main emission component in the 500–520 nm spectral range, attributed to the Z-isomer, and a very short living blue-shifted emission, attributed to the E-isomer. Finally, transient absorption measurements performed upon far-red excitation are employed as an alternative method to determine the two-photon absorption cross-section of the molecule.

Large Two-Photon Absorption Cross Sections of Hemiporphyrazines in the Excited State: The Multiphoton Absorption Process of Hemiporphyrazines with Different Central Metals

2008 ◽  
Vol 130 (37) ◽  
pp. 12290-12298 ◽  
Author(s):  
Danilo Dini ◽  
Mario J.F. Calvete ◽  
Michael Hanack ◽  
Vincenzo Amendola ◽  
Moreno Meneghetti
Keyword(s):  
Excited State ◽  
Cross Sections ◽  
Photon Absorption ◽  
Multiphoton Absorption ◽  
Absorption Cross ◽  
Absorption Process ◽  
Two Photon Absorption ◽  
Two Photon

Excited-State Dynamics and Two-Photon Absorption Cross Sections of Fluorescent Diphenyl-TinIVDerivatives with Schiff Bases: A Comparative Study of the Effect of Chelation from the Ultrafast to the Steady-State Time Scale

2010 ◽  
Vol 114 (2) ◽  
pp. 704-714 ◽  
Author(s):  
Jimena S. Zugazagoitia ◽  
Mauricio Maya ◽  
Carlos Damián-Zea ◽  
Pedro Navarro ◽  
Hiram I. Beltrán ◽  
...  
Keyword(s):  
Excited State ◽  
Steady State ◽  
Comparative Study ◽  
Cross Sections ◽  
Time Scale ◽  
Photon Absorption ◽  
Absorption Cross ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Steady State Time

Two-photon absorption studies of polymethine, squaraine and tetraon dyes

2006 ◽  
Author(s):  
Jie Fu ◽  
Olga V. Przhonska ◽  
Lazaro A. Padilha ◽  
Scott Webster ◽  
David J. Hagan ◽  
...  
Keyword(s):  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Absorption Studies

Lo-phonon-assisted two-photon absorption of the first excited state of the biexciton in CuCl

1977 ◽  
Vol 80 (1) ◽  
pp. 51-56 ◽  
Author(s):  
W. Ekardt ◽  
M. I. Sheboul
Keyword(s):  
Excited State ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
First Excited State

Two-Photon Absorption and Excited State Dynamics of Two Organic Molecules Containing Donor/Acceptor Moieties

2008 ◽  
Vol 25 (7) ◽  
pp. 2456-2459 ◽  
Author(s):  
Yan Yong-Li ◽  
Li Bo ◽  
Liu Kang-Jun ◽  
Dong Zhi-Wei ◽  
Ma Guo-Hong ◽  
...  
Keyword(s):  
Excited State ◽  
Organic Molecules ◽  
Photon Absorption ◽  
Excited State Dynamics ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Donor Acceptor
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