Enhancing fluorescence detection with a photonic crystal structure in a total-internal-reflection configuration
Enhancing fluorescence detection with a photonic crystal structure in a total-internal-reflection configuration
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DOI:
10.1364/ol.33.001729
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发表时间:
2008-08-01
期刊:
影响因子:
3.6
通讯作者:
Ishikawa, Mitsuru
中科院分区:
文献类型:
--
作者:
Ye, Jing Yong;Ishikawa, Mitsuru
In contrast to fluorescence enhancement of fluorophores embedded in a photonic crystal structure as previously reported [Appl. Phys. Lett. 75, 3605 (1999)], in this Letter we demonstrate a unique approach to forming an open microcavity using a one-dimensional photonic crystal in a total-internal-reflection geometry. This configuration opens up the possibility for enhancing fluorescence imaging and biosensing. Time-resolved fluorescence detection of fluorophores immobilized on the open cavity has been carried out. Over 20-fold fluorescence enhancement was observed. (C) 2008 Optical Society of America.