Photoselection of Luminescent Molecules in Anisotropic Media in the Case of Two-Photon Excitation. Part I. Theoretical Considerations

1994 ◽  
Vol 49 (10) ◽  
pp. 936-938
Author(s):  
A. Kawski ◽  
G. Piszczek
Keyword(s):  
Polymer Film ◽  
Excited States ◽  
Anisotropic Media ◽  
Absorption And Emission ◽  
Electronic Excited States ◽  
Two Photon ◽  
Photon Excitation ◽  
Emission Transition ◽  
Selection Principles ◽  
Theoretical Considerations

AbstractPhotoselection of elongated luminescent molecules oriented in a stretched polymer film is considered theoretically for the case of two- and three-photon excitation, having in mind the employment of this phenomenon for determining the angle between the absorption and emission transition moments. Two-photon photoselection provides information on electronic excited states which are not detectable by conventional one-photon spectroscopy due to selection principles.

Fluorescence anisotropy in indole under two-photon excitation in the spectral range 385–510 nm

2018 ◽  
Vol 20 (30) ◽  
pp. 19922-19931 ◽  
Author(s):  
M. E. Sasin ◽  
A. G. Smolin ◽  
K.-H. Gericke ◽  
E. Tokunaga ◽  
O. S. Vasyutinskii
Keyword(s):  
Propylene Glycol ◽  
Excited States ◽  
Spectral Range ◽  
Ground State ◽  
Fluorescence Anisotropy ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Photon Excitation ◽  
Molecular Ground State

This paper presents the detailed study of two-photon excited fluorescence in indole dissolved in propylene glycol produced by two-photon absorption from the molecular ground state to several high lying excited states.

scholarly journals Creation of Metal-to-Ligand Charge Transfer Excited States with Two-Photon Excitation

1997 ◽  
Vol 36 (24) ◽  
pp. 5548-5551 ◽  
Author(s):  
Felix N. Castellano ◽  
Henryk Malak ◽  
Ignacy Gryczynski ◽  
Joseph R. Lakowicz
Keyword(s):  
Charge Transfer ◽  
Excited States ◽  
Two Photon ◽  
Photon Excitation ◽  
Ligand Charge Transfer ◽  
Two Photon Excitation

Broadband Excited State Dynamics of Common Reverse Saturable Absorbing Dye Media.

1994 ◽  
Vol 374 ◽  
Author(s):  
Kenneth J. McEwan ◽  
Richard C. Hollins
Keyword(s):  
Excited State ◽  
Organic Liquid ◽  
Excited State Absorption ◽  
Photon Absorption ◽  
Excited State Lifetime ◽  
Absorption And Emission ◽  
Two Photon Absorption ◽  
Two Photon ◽  
State Response ◽  
Photon Excitation

AbstractIn this paper we describe a technique by which the broadband excited state absorption/emission and dynamics can be measured for materials with either linear or two photon absorption. The technique is applied to two different dyes in solution and to a cyano-biphenyl organic liquid. The ratio of σex/σgr for HITCI in methanol is greater than 1 from 400 to 570nm and at 532nn is determined to be 25; the excited state lifetime is 800ps. For CAP in methanol σex/σgr is greater than 1 from 400–650nm and is 14 at 532nm. Dimer absorption and emission are found to contribute to the excited state response in this material. In the organic liquid broadband (400–570nm) excited state absorption is measured following two photon excitation at 588nm.

Sign in / Sign up

Export Citation Format

Share Document