期刊
APPLIED PHYSICS LETTERS
卷 97, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3525173
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资金
- National Research Foundation of Singapore [NRF-G-CRP 2007-01]
- National Natural Science Foundation of China [10974101]
- Ministry of Science and Technology of China [2009DFA52300]
A technique for high-resolution wide-field fluorescence microscopy by using standing surface plasmon waves induced by optical vortices (OVs) is proposed, aiming at harnessing its unique dynamic properties to sequentially illuminate specimen with different phase-shifted interference excitation field. Topological charges of the OV are employed to modulate phase-shifting of the interference pattern. Numerical studies and experimental results reveal an achievement of 0.25 lambda optical resolution, a factor of twofold improvement compared with the standard total-internal-reflection fluorescence microscopy. (C) 2010 American Institute of Physics. [doi:10.1063/1.3525173]
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