Improved resolution in fluorescence microscopy with the FRET pairs by time gating

Shangguo Hou, Jianfang Chen, Suhui Deng, Fei Wang, Qing Huang, Ya Cheng, Chunhai Fan

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We investigate the temporal information of nonlinear donor fluorescence in the FRET frustration microscopy. The arrival time of the donor fluorescence varies with the distribution of the excitation laser. The differences of the arrival times between different positions in the excitation spot can be further enhanced in the case of adding a depletion beam upon the FRET probes. The spatial information is encoded in the temporal dynamics of the fluorescent photons from donor molecules and time-gating in detection can be used to increase the spatial resolution.

Original languageEnglish
Pages (from-to)13121-13129
Number of pages9
JournalOptics Express
Volume23
Issue number10
DOIs
StatePublished - 2015
Externally publishedYes

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