Mid-infrared subwavelength modulator based on grating-assisted coupling of a hybrid plasmonic waveguide mode to a graphene plasmon

Nanoscale ◽  
2017 ◽  
Vol 9 (44) ◽  
pp. 17429-17438 ◽  
Author(s):  
Yonghan Kim ◽  
Min-Suk Kwon
Keyword(s):  
Waveguide Mode ◽  
Plasmonic Waveguide ◽  
Mid Infrared ◽  
Tuning Mechanism ◽  
Hybrid Plasmonic Waveguide ◽  
Waveguide Modulator

This work reports an ultracompact mid-infrared waveguide modulator which practically uses a graphene plasmon for an effective tuning mechanism.

scholarly journals Graphene-based hybrid plasmonic waveguide for highly efficient broadband mid-infrared propagation and modulation

2018 ◽  
Vol 26 (12) ◽  
pp. 15935 ◽  
Author(s):  
Longfang Ye ◽  
Kehan Sui ◽  
Yanhui Liu ◽  
Miao Zhang ◽  
Qing Huo Liu
Keyword(s):  
Plasmonic Waveguide ◽  
Mid Infrared ◽  
Highly Efficient ◽  
Hybrid Plasmonic Waveguide

scholarly journals Low-Threshold Nanolaser Based on Hybrid Plasmonic Waveguide Mode Supported by Metallic Grating Waveguide Structure

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2555
Author(s):  
Xin Zhang ◽  
Meng Yan ◽  
Tingyin Ning ◽  
Lina Zhao ◽  
Shouzhen Jiang ◽  
...  
Keyword(s):  
Dielectric Layer ◽  
Waveguide Mode ◽  
Plasmonic Waveguide ◽  
Classical Electrodynamics ◽  
Duty Ratio ◽  
Lasing Threshold ◽  
Q Factor ◽  
Electron Model ◽  
Hybrid Plasmonic Waveguide ◽  
Low Threshold

A high Q-factor of the nanocavity can effectively reduce the threshold of nanolasers. In this paper, a modified nanostructure composed of a silver grating on a low-index dielectric layer (LID) and a high-index dielectric layer (HID) was proposed to realize a nanolaser with a lower lasing threshold. The nanostructure supports a hybrid plasmonic waveguide mode with a very-narrow line-width that can be reduced to about 1.79 nm by adjusting the thickness of the LID/HID layer or the duty ratio of grating, and the Q-factor can reach up to about 348. We theoretically demonstrated the lasing behavior of the modified nanostructures using the model of the combination of the classical electrodynamics and the four-level two-electron model of the gain material. The results demonstrated that the nanolaser based on the hybrid plasmonic waveguide mode can really reduce the lasing threshold to 0.042 mJ/cm2, which is about three times lower than the nanolaser based on the surface plasmon. The lasing action can be modulated by the thickness of the LID layer, the thickness of the HID layer and the duty cycle of grating. Our findings could provide a useful guideline to design low-threshold and highly-efficient miniaturized lasers.

scholarly journals High‐Speed Transmission Control in Gate‐Tunable Metasurfaces Using Hybrid Plasmonic Waveguide Mode

2020 ◽  
Vol 8 (22) ◽  
pp. 2001256
Author(s):  
Yohan Lee ◽  
Jeongse Yun ◽  
Sun‐Je Kim ◽  
Minjee Seo ◽  
Sungjun In ◽  
...  
Keyword(s):  
High Speed ◽  
Waveguide Mode ◽  
Plasmonic Waveguide ◽  
Transmission Control ◽  
Hybrid Plasmonic Waveguide

Broadband spectra translation between mid-infrared band and telecom band in a nonlinear silicon-based symmetric hybrid plasmonic waveguide

2018 ◽  
Vol 27 (02) ◽  
pp. 1850022 ◽  
Author(s):  
Xibin Li ◽  
Zhihua Tu ◽  
Qiang Jin ◽  
Shiming Gao ◽  
Sailing He
Keyword(s):  
Optical Switching ◽  
Geometry Optimization ◽  
Plasmonic Waveguide ◽  
Infrared Band ◽  
Mid Infrared ◽  
Silica Substrate ◽  
Hybrid Plasmonic Waveguide ◽  
High Efficient ◽  
Silicon Based ◽  
All Optical Switching

A symmetric hybrid plasmonic waveguide is designed to realize high-efficient conversion between mid-infrared (MIR) and telecom wavelength bands. The proposed hybrid plasmonic waveguide consists of an insulator–metal–insulator structure buried into a silicon ridge on silica substrate. By using geometry optimization, the dispersion of waveguide is optimized, leading to broadband (resulting in a 3-dB bandwidth of 1,919[Formula: see text]nm from 1.496[Formula: see text][Formula: see text]m to 3.415[Formula: see text][Formula: see text]m) and efficient (resulting in a peak conversion efficiency of [Formula: see text]18.9[Formula: see text]dB) four-wave mixing (FWM) in a 200-[Formula: see text]m-long waveguide pumped by a 1.725-[Formula: see text]m source of 0.5 W. This waveguide configuration shows its great potential in all-optical switching between MIR band and telecom band.

Quasi-phase-matched four-wave mixing generation between C-band and mid-infrared regions using a symmetric hybrid plasmonic waveguide grating

2015 ◽  
Vol 54 (23) ◽  
pp. 6961 ◽  
Author(s):  
Jing Dai ◽  
Minming Zhang ◽  
Feiya Zhou ◽  
Yuanwu Wang ◽  
Luluzi Lu ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Plasmonic Waveguide ◽  
Wave Mixing ◽  
Mid Infrared ◽  
Waveguide Grating ◽  
Hybrid Plasmonic Waveguide

Mid-infrared polarization rotator based on a Si3N4-CaF2 hybrid plasmonic waveguide with asymmetric metal claddings

2021 ◽  
Vol 60 (8) ◽  
pp. 2441
Author(s):  
Fang Wang ◽  
Yake Chen ◽  
Tao Ma ◽  
Heng Liu ◽  
Xu Wang ◽  
...  
Keyword(s):  
Plasmonic Waveguide ◽  
Mid Infrared ◽  
Polarization Rotator ◽  
Hybrid Plasmonic Waveguide

scholarly journals Transmission of Photonic Quantum Polarization Entanglement in a Nanoscale Hybrid Plasmonic Waveguide

Nano Letters ◽  
2015 ◽  
Vol 15 (4) ◽  
pp. 2380-2384 ◽  
Author(s):  
Ming Li ◽  
Chang-Ling Zou ◽  
Xi-Feng Ren ◽  
Xiao Xiong ◽  
Yong-Jing Cai ◽  
...  
Keyword(s):  
Plasmonic Waveguide ◽  
Hybrid Plasmonic Waveguide ◽  
Quantum Polarization
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