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
Yaocheng Shi
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Peipeng Xu;Yaocheng Shi

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在本文中,我们提出了布拉格反射器和高Q值的微腔基于硅混合等离子体波导。布拉格反射器由混合等离子体激元波导中的低折射率层的厚度的周期性变化形成。模拟结果表明,我们的反射器具有相对较低的损耗相比,传统的MIM或IMI等离子体布拉格光栅反射器。混合等离子体微腔形成的缺陷引入到光栅也进行了研究。由于混合等离子体激元结构可以有效地将光限制在深亚波长范围内,并且具有相对低的传播损耗,因此我们的混合等离子体激元微腔可以在1550nm的波长处达到1235的Q因子。
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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影响因子: 3.6
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