Photon-counting technique for rapid fluorescence-decay measurement

1998 ◽  
Vol 23 (15) ◽  
pp. 1215 ◽  
Author(s):  
Spencer D. Pack ◽  
Michael W. Renfro ◽  
Galen B. King ◽  
Normand M. Laurendeau
Keyword(s):  
Photon Counting ◽  
Fluorescence Decay ◽  
Counting Technique ◽  
Decay Measurement

Single Particle Spectroscopy of Radiative Processes in Colloid-to-Film-Coupled Nanoantennas

2018 ◽  
Vol 232 (9-11) ◽  
pp. 1593-1606 ◽  
Author(s):  
Max J. Schnepf ◽  
Yannic Brasse ◽  
Fabian R. Goßler ◽  
Anja Maria Steiner ◽  
Julian Obermeier ◽  
...  
Keyword(s):  
Single Particle ◽  
Radiative Decay ◽  
Single Photon ◽  
Photon Counting ◽  
Life Time ◽  
Fluorescence Decay ◽  
Decay Rates ◽  
Single Photon Counting ◽  
Radiative Processes ◽  
Particle Level

Abstract We present a fluorescent emitter (rhodamine B) coupled to a dielectric or metallic interface as well as a metallic cavity to study their radiative decay processes. Supported by finite-difference time-domain (FDTD) simulations, we correlate the non-radiative and radiative decay rates with the absorption and scattering cross section efficiencies, respectively. On a single particle level, we use atomic force microscopy (AFM), scanning electron microscopy (SEM), scattering spectroscopy, fluorescence life time imaging (FLIM) and time-correlated single photon counting (TCSPC) to evaluate the enhanced fluorescence decay at the same location. With this study, we show a colloidal gain material, which can be integrated into lattices using existing directed self-assembled methods to study their coherent energy transfer.

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