Journal ArticleDOI
Singlet exciton annihilation in the picosecond fluorescence decay of 1, 1'-diethyl-2,2'-cyanine chloride dye j-aggregate
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TLDR
In this article, the authors measured the time-resolved fluorescence decay of the Jaggregate of the title dye with a jitter-free picosecond streak camera and by time-correlated single photon counting.About:
This article is published in Journal of Luminescence.The article was published on 1984-12-01. It has received 41 citations till now. The article focuses on the topics: Exciton & Picosecond.read more
Citations
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Journal ArticleDOI
Polariton-mediated energy transfer between organic dyes in a strongly coupled optical microcavity.
David M. Coles,N. Somaschi,Paolo Michetti,Caspar Clark,Pavlos G. Lagoudakis,Pavlos G. Savvidis,David G. Lidzey +6 more
TL;DR: This work uses strong coupling in an optical microcavity to mix the electronic transitions of two J-aggregated molecular dyes and uses both non-resonant photoluminescence emission and photolumsinescence excitation spectroscopy to show that hybrid-polariton states act as an efficient and ultrafast energy-transfer pathway between the two exciton states.
Journal ArticleDOI
Annihilation of singlet excitons in J aggregates of pseudoisocyanine (PIC) studied by pico‐ and subpicosecond spectroscopy
TL;DR: In this article, the excited state dynamics of J aggregates of PIC have been studied by means of picosecond and subpicosecond absorption spectroscopy as well as integrated fluorescence yield measurements.
Journal ArticleDOI
Superradiance in molecular aggregates
Frank C. Spano,Shaul Mukamel +1 more
TL;DR: In this article, a reduced equation of motion for the density matrix which accounts for spontaneous emission and superradiance was used to analyze the fluorescence and transient grating (TG) decays from a dilute, optically thin distribution of molecular aggregates.
Journal ArticleDOI
Optical dynamics of excitons in J aggregates of a carbocyanine dye
TL;DR: In this article, the intersite correlation of the frequency disorder and the size of the coherence domains were estimated using two-color pump-probe spectroscopy, and the temperature and wavelength dependent fluorescence lifetime and accumulated photon-echo experiments on the J aggregate of the dye 5,5′,6, 6,6′-tetrachloro-1,1′-diethyl-3,3′-di(4-sulfobutyl) -benzimidazolocarbocyanine (TDBC) in
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The dynamics of one‐dimensional excitons in liquids
TL;DR: In this paper, the properties of excitons in one-dimensional molecular aggregates, dissolved at room temperature in a liquid, were studied by means of femtosecond nonlinear optical experiments.
References
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Journal ArticleDOI
Ultrafast transient processes of monomers, dimers, and aggregates of pseudoisocyanine chloride (PIC)
B. Kopainsky,W. Kaiser +1 more
TL;DR: In this article, the authors showed that at 18920 cm −1 intensities, three orders of magnitude higher intensities are required for a significant reduction of transmission power for photobleaching.
Journal ArticleDOI
A simple jitter-free picosecond streak camera
Wayne H. Knox,Gerard Mourou +1 more
TL;DR: Using a DC-biased room-temperature photoconductive switching element, a streak camera is operated at sweep rates up to 7 ps/mm with complete absence of short and long-term drift characteristic of all other sweep drivers as discussed by the authors.
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Picosecond kinetics and transient spectra of pseudoisocyanine monomers and J-aggregates in aqueous solution
TL;DR: Bleaching of monomer and J-aggregate bands of pseudoisocyanine was observed using tunable excitation wavelengths as mentioned in this paper, and the bleached bands decrease with (15 ± 3) ps.
Journal ArticleDOI
Determination of the fluorescence decay time of the I aggregates of pseudoisocyanine
TL;DR: The fluorescence decay time of the I aggregates of pseudoisocyanine is measured by means of an optical gate as mentioned in this paper, and it averages 30 ps, which is quite slow.
Journal ArticleDOI
Temperature dependence of J-band aggregate of the dye 1,1′-diethyl-2,2′-cyanine bromide studied by steady-state and time-resolved picosecond fluorescence spectroscopy
Z.X. Yu,P.Y. Lu,Robert R. Alfano +2 more
TL;DR: In this article, the J-band aggregate state of the dye 1,1′-diethyl-2,2′-cyanine bromide was measured at different temperatures.