Plasmonic Demultiplexer With Tunable Output Power Ratio Based on Metal-Dielectric-Metal Structure and E7 Liquid Crystal Arrays
Plasmonic Demultiplexer With Tunable Output Power Ratio Based on Metal-Dielectric-Metal Structure and E7 Liquid Crystal Arrays
复制标题
基于金属-电介质-金属结构和E7液晶阵列的输出功率比可调的等离子体解复用器
DOI:
10.1109/jphot.2020.2987396
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发表时间:
2020-04
影响因子:
2.4
通讯作者:
Niu Tiaoming
中科院分区:
文献类型:
--
作者:
Wang Zelong;Cheng Lin;Wu Yuyao;Li Chengpu;Gong Mingyang;Cao Pengfei;He Xiaodong;Niu Tiaoming
A novel tunable plasmonic demultiplexer is proposed and numerically investigated by finite element method (FEM). It consists of two half-nanodisk cavities and two sets of E7 liquid crystal arrays which are side-coupled to three metal-dielectric-metal (MDM) waveguides. The demultiplexer can split the input lights into two parts corresponding to port1 (1310 nm) and port2 (1550 nm). The Q-factors of port1 and port2 are 54.6 and 36, and the crosstalk values are −20.7 dB and −29.9 dB, respectively. Obviously, both channels have high Q-factors and low crosstalk value. Moreover, the E7 liquid crystal arrays play a key role in the whole structure, which makes the output power adjustable proportionally by adjusting the applied voltage. This novel feature greatly enriches the function of our demultiplexer. Using the electronical tunable birefringence characteristic of liquid crystal and its arrays structure paves a new way to realize practical on-chip plasmonic system, which can be widely used not only in demultiplexers but also in nanosensors, optical splitters, filters, optical switches, nonlinear photonic and slow-light devices.
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影响因子:
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作者:
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影响因子:
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通讯作者:
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影响因子:
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通讯作者:
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