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Coherent fluorescence emission by using hybrid photonic-plasmonic crystals.


ABSTRACT: The spatial and temporal coherence of the fluorescence emission controlled by a quasi-two-dimensional hybrid photonic-plasmonic crystal structure covered with a thin fluorescent-molecular-doped dielectric film is investigated experimentally. A simple theoretical model to describe how a confined quasi-two-dimensional optical mode may induce coherent fluorescence emission is also presented. Concerning the spatial coherence, it is experimentally observed that the coherence area in the plane of the light source is in excess of 49 ?m(2), which results in enhanced directional fluorescence emission. Concerning temporal coherence, the obtained coherence time is 4 times longer than that of the normal fluorescence emission in vacuum. Moreover, a Young's double-slit interference experiment is performed to directly confirm the spatially coherent emission. This smoking gun proof of spatial coherence is reported here for the first time for the optical-mode-modified emission.

SUBMITTER: Shi L 

PROVIDER: S-EPMC4358154 | biostudies-other | 2014 Sep

REPOSITORIES: biostudies-other

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Coherent fluorescence emission by using hybrid photonic-plasmonic crystals.

Shi Lei L   Yuan Xiaowen X   Zhang Yafeng Y   Hakala Tommi T   Yin Shaoyu S   Han Dezhuan D   Zhu Xiaolong X   Zhang Bo B   Liu Xiaohan X   Törmä Päivi P   Lu Wei W   Zi Jian J  

Laser & photonics reviews 20140617 5


The spatial and temporal coherence of the fluorescence emission controlled by a quasi-two-dimensional hybrid photonic-plasmonic crystal structure covered with a thin fluorescent-molecular-doped dielectric film is investigated experimentally. A simple theoretical model to describe how a confined quasi-two-dimensional optical mode may induce coherent fluorescence emission is also presented. Concerning the spatial coherence, it is experimentally observed that the coherence area in the plane of the  ...[more]

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