Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7925206 | Optics Communications | 2018 | 4 Pages |
Abstract
A practical methodology to conduct the time-resolved fluorescence microscopy has been developed; the technique employs bursts of excitation pulses (â¤Â ms duration) gated by an electro-optic modulator from a 76 MHz ultrafast oscillator and enables incremental stage positioning along with gated photon counting in a pump-probe scheme. A fluorescence trajectory is thus spread into segments of the multiple scans, which advances an efficient data recovery not only over limited photon-cycles but a frequently blinking trajectory owing to the innate heterogeneity present in a single-molecule environment. A typical application that probes ultrafast dynamics of an interfacial electron transfer was demonstrated in a dye-sensitized TiO2 nanoparticles at ambient condition.
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Authors
Takashige Fujiwara,