Paper
22 February 2013 Fluorescence lifetime imaging with pulsed diode laser enabled stimulated emission
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Abstract
We present here a stimulated emission based fluorescence lifetime imaging (FLIM) scheme using a pair of synchronized diode lasers operating at gain switched pulse mode. The two semiconductor lasers, with wavelengths at 635 nm and 700 nm, serve as the excitation and the stimulation light sources for the ATTO647N labeled sample, respectively. FLIM is readily achieved with their relative time delay controlled electronically. The coherent nature of the stimulated emission signal also allows FLIM at long working distance. In this way, a high performance all-semiconductor FLIM module is realized in a flexible, compact, and cost effective configuration.
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Jianhong Ge, Yixin Wang, Cuifang Kuang, Shin-Shian Lee, Nirmal Mazumder, and Fu-Jen Kao "Fluorescence lifetime imaging with pulsed diode laser enabled stimulated emission", Proc. SPIE 8588, Multiphoton Microscopy in the Biomedical Sciences XIII, 858832 (22 February 2013); https://doi.org/10.1117/12.2009387
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KEYWORDS
Fluorescence lifetime imaging

Semiconductor lasers

Luminescence

Modulation

Polarization

Light sources

Objectives

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