Silicon hybrid plasmonic Bragg grating reflectors and high Q-factor micro-cavities
Silicon hybrid plasmonic Bragg grating reflectors and high Q-factor micro-cavities
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硅混合等离子体布拉格光栅反射器和高 Q 因子微腔
DOI:
10.1016/j.optcom.2012.10.002
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发表时间:
2013-02
影响因子:
2.4
通讯作者:
Yaocheng Shi
中科院分区:
文献类型:
--
作者:
Peipeng Xu;Yaocheng Shi
In this paper, we present Bragg reflectors and high-Q micro-cavities based on Si hybrid plasmonic waveguides. The Bragg reflector is formed by a periodic variation of the thickness of the low index layer in a hybrid plasmonic waveguide. The simulated results show that our reflectors have a relatively low loss compared to conventional MIM or IMI plasmonic Bragg grating reflectors. Hybrid plasmonic micro-cavities formed by the introduction of a defect into the grating are also investigated. Due to the fact that a hybrid plasmonic structure can efficiently confine light in deep subwavelength scale with a relatively low propagation loss, our hybrid plasmonic micro-cavities can reach a Q factor of 1235 at the wavelength of 1550nm.
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