Fluorescence enhancement with the optical (bi-) conical antenna
Fluorescence enhancement with the optical (bi-) conical antenna
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DOI:
10.1021/jp9094084
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发表时间:
2010-02
期刊:
影响因子:
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通讯作者:
A. Mohammadi;F. Kaminski;V. Sandoghdar;M. Agio
中科院分区:
文献类型:
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作者:
A. Mohammadi;F. Kaminski;V. Sandoghdar;M. Agio
We investigate the properties of finite gold nanocones as optical antennas for enhancing molecular fluorescence. We compute the modification of the excitation rate, spontaneous emission rate, and quantum efficiency as a function of the nanocone base and length, showing that the maximum field and fluorescence enhancements do not occur for the same nanocone parameters. We compare the results with those for nanorods and nanospheroids and find that nanocones perform better.