期刊
APPLIED PHYSICS LETTERS
卷 97, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3520138
关键词
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资金
- NSFC [10821062, 11004003]
- National Basic Research Program of China [2007CB307001, 2009CB930504]
- RFDP [20090001120004]
Using the single-scatterer-induced coupling mechanism of a pair of counterpropagating high-Q whispering-gallery modes (WGMs), we investigate the highly sensitive detection of single nonspherical nanoparticles. The nonspherical particle may produce distinct frequency splitting and additional damping for TE and TM WGMs. This polarization-dependent effect allows for studying the orientation of single biomolecule, molecule-molecule interaction on the microcavity surface, and possibly distinguishing different inner configurations of similar biomolecules. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3520138]
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