Polarization dependence of luminescence induced by two-photon excitation in LiF crystals with F 3 + laser color centers and the symmetry of the excited state

1997 ◽  
Vol 39 (8) ◽  
pp. 1218-1223 ◽  
Author(s):  
T. T. Basiev ◽  
I. V. Ermakov ◽  
K. K. Pukhov
Keyword(s):  
Excited State ◽  
Polarization Dependence ◽  
Color Centers ◽  
Two Photon ◽  
Photon Excitation ◽  
Two Photon Excitation

scholarly journals Polarization dependence of two-photon excitation of cold 7Li Rydberg atoms

2019 ◽  
Vol 1147 ◽  
pp. 012096
Author(s):  
S A Saakyan ◽  
A A Bobrov ◽  
E V Vilshanskaya ◽  
V A Sautenkov ◽  
B B Zelener
Keyword(s):  
Rydberg Atoms ◽  
Polarization Dependence ◽  
Two Photon ◽  
Photon Excitation ◽  
Two Photon Excitation

scholarly journals Two-photon induced isomerization through a cyaninic molecular antenna in azo compounds

2021 ◽  
Author(s):  
Emmanuel Villatoro ◽  
Leonardo Muñoz-Rugeles ◽  
Jesús Durán-Hernández ◽  
Bernardo Salcido-Santacruz ◽  
Nuria Esturau-Escofet ◽  
...  
Keyword(s):  
Excited State ◽  
Excitation Energy ◽  
Energy Migration ◽  
Azo Compounds ◽  
Singlet Excited State ◽  
Two Photon ◽  
Photon Excitation ◽  
Two Photon Excitation

Upon two photon excitation, energy migration from the antenna-localized second singlet excited state to the stilbenyl-azopyrrole section allows for efficient indirect excitation and phototransformation of this actuator.

scholarly journals Two-photon ESIPT-based fluorescent probe using 4-hydroxyisoindoline-1,3-dione for the detection of peroxynitrite

2021 ◽  
Author(s):  
Luling Wu ◽  
Xue Tian ◽  
Dong Joon Lee ◽  
Juyoung Yoon ◽  
Chang Su Lim ◽  
...  
Keyword(s):  
Excited State ◽  
Proton Transfer ◽  
Fluorescent Probe ◽  
Intramolecular Proton Transfer ◽  
Two Photon ◽  
Photon Excitation ◽  
Two Photon Excitation

Excited-state intramolecular proton transfer (ESIPT)-based fluorophores with two-photon excitation fluorescence (TPEF) are rare. Our aim with this research was to develop ESITP-based fluorophores exhibiting TPEF. Herein, we used 4-hydroxyisoindoline-1,3-dione as...

Fluorescence Anisotropies of 4-Dimethylamino-ω- diphenylphosphinyl-trans-Styrene in Isotropic Media in the Case of One-and Two-Photon Excitation

1993 ◽  
Vol 48 (4) ◽  
pp. 551-556 ◽  
Author(s):  
A. Kawski ◽  
J. Gryczyński ◽  
Z. Gryczyński
Keyword(s):  
Excited State ◽  
Rotational Diffusion ◽  
Fluorescence Emission ◽  
Excited State Lifetime ◽  
Two Photon ◽  
Photon Excitation ◽  
Isotropic Media ◽  
Different Temperatures ◽  
Initial Shock ◽  
Two Photon Excitation

Abstract Fluorescence emission anisotropies, r, and mean lifetimes of 4-dimethylamino-ω-diphenylphosphinyl-trans-styrene (DDPS) were measured in n-butanol at different temperatures from 20 to 80 °C for one-and two-photon excitation. When increasing the temperature, the lifetime decreased from 32 to 12 ps, the r values, however, remained constant (0.315 and 0.445 for one-and two-photon excitation, respectively) and were found to be temperature independent. For DDPS in glycerol at - 5°C, where rotational diffusion does not occur during the excited state lifetime, the limiting emission anisotropies were r0 = 0.382 and r0 = 0.545 for one-and two-photon excitation, respectively, very little differing from the fundamental emission anisotropies rf = 2/5 and rf = 4/7. The small differences rf - r0 can be due to vibrations performed after excitation by the DDPS molecule as a result of the initial shock.

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