Two-photon excited fluorescence depolarisation and electronic energy migration within donor–donor pairs

2009 ◽  
Vol 11 (33) ◽  
pp. 7152 ◽  
Author(s):  
Oleg Opanasyuk ◽  
Linus Ryderfors ◽  
Emad Mukhtar ◽  
Lennart B.-Å. Johansson
Keyword(s):  
Electronic Energy ◽  
Energy Migration ◽  
Two Photon

On the analyses of fluorescence depolarisation data in the presence of electronic energy migration. Part II: Applying and evaluating two-photon excited fluorescence

2012 ◽  
Vol 14 (6) ◽  
pp. 1917
Author(s):  
Oleg Opanasyuk ◽  
Therese Mikaelsson ◽  
Linus Ryderfors ◽  
Emad Mukhtar ◽  
Lennart B.-Å. Johansson
Keyword(s):  
Electronic Energy ◽  
Energy Migration ◽  
Two Photon

Electronic Energy Migration (or Hopping)

2016 ◽  
Author(s):  
Silvia E. Braslavsky ◽  
André M. Braun ◽  
Alberto E. Cassano ◽  
Alexei V. Emeline ◽  
Marta I. Litter ◽  
...  
Keyword(s):  
Electronic Energy ◽  
Energy Migration

The photophysics of metalloporphyrins excited in their Soret and higher energy UV absorption bands

2007 ◽  
Vol 11 (04) ◽  
pp. 228-243 ◽  
Author(s):  
Umakanta Tripathy ◽  
Ronald P. Steer
Keyword(s):  
Energy Transfer ◽  
Transition Metals ◽  
Electronic Energy ◽  
Relaxation Dynamics ◽  
Absorption Bands ◽  
Electronic Energy Transfer ◽  
Two Photon ◽  
Photon Excitation ◽  
Singlet States ◽  
D Orbitals

Photophysical processes involving the higher electronic excited states of diamagnetic porphyrins and metalloporphyrins are critically reviewed. Intramolecular electronic relaxation of one-photon Soret-excited molecules in solution is now known to involve processes other than S 2 - S 1 internal conversion; dark electronic states are implicated. Sequential two-photon excitation to produce gerade excited singlet states ( S n , n > 2) results in relaxation dynamics that are quantitatively different from those resulting from one-photon excitation to ungerade states of about the same energy. Intermolecular electron and electronic energy transfer involving Soret-excited metalloporphyrins and intramolecular electron and electronic energy transfer in Soret-excited dyads and larger arrays containing porphyrins are reviewed. Metalloporphyrins containing main group metals or transition metals with filled d orbitals exhibit relaxation dynamics that differ from metalloporphyrins containing transition metals with unfilled d orbitals. Non-linear phenomena associated with multi-photon excitation of diamagnetic metalloporphyrins are also reviewed.

Studies of the electronic energy migration and trapping in styrene copolymers

1985 ◽  
Vol 18 (12) ◽  
pp. 2714-2719 ◽  
Author(s):  
K. Sienicki ◽  
C. Bojarski
Keyword(s):  
Electronic Energy ◽  
Energy Migration ◽  
Styrene Copolymers

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.

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