Phase Interference in the Two-Photon Excitation of Phenanthrene

1986 ◽  
Vol 40 (4) ◽  
pp. 486-489
Author(s):  
A. C. Koskelo ◽  
D. L. Curtin ◽  
M. J. Wirth
Keyword(s):  
Excited State ◽  
Vapor Phase ◽  
Low Frequency ◽  
Photon Polarization ◽  
Symmetric State ◽  
Two Photon ◽  
Photon Excitation ◽  
Antisymmetric State ◽  
First Excited State ◽  
Phase Interference

Two-photon polarization measurements are shown to provide an incorrect symmetry assignment for the first excited state of phenanthrene, both in solution and in the vapor phase. Published assignments from one-photon, single-crystal measurements indicate a totally symmetric state, while the assignment from two-photon measurements indicates an antisymmetric state. Possible reasons for the failure of the two-photon symmetry assignment are low-frequency vibronic overlap, and interference among the diagonal tensor elements. Experimental evidence points to interference as the origin of the discrepancy.

Two-photon spectroscopy in the gas phase: first excited state of naphthalene, 1B3u

1976 ◽  
Vol 15 (2) ◽  
pp. 167-178 ◽  
Author(s):  
U. Boesl ◽  
H.J. Neusser ◽  
E.W. Schlag
Keyword(s):  
Excited State ◽  
Gas Phase ◽  
Two Photon ◽  
First Excited State

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...

Sign in / Sign up

Export Citation Format

Share Document