Theoretical study of liquid crystal dielectric-loaded plasmonic waveguide

Armand, Hamed; Ardakani, Mansoor Dashti

doi:10.1017/s1759078715001695

Cited by 2 publications

(2 citation statements)

References 26 publications

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“…PhC doped with N-LC material has recently acquired a great deal of research attention [19][20][21][22][23][24][25]. With crystal form orientation, the molecules of the N-LC have a degree of ordering [26].…”

Section: Introductionmentioning

confidence: 99%

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

Charik¹,

Bouras²,

Bennacer³

2021

PIER M

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In this study, 1D Photonic Crystal (PhC) with Nematic Liquid Crystal (N-LC) central microcavity is analyzed and discussed using Rigorous Coupled Wave Analysis (RCWA) method. A microcavity is inserted into the 1D PhC by the Air Defect, making it ideal for measuring the properties of an N-LC contained inside the microcavity. Here simulation is considered for NLC (E7) as a thermal sensor. The principle of photonic crystal thermal sensor operation is studied in the TE mode of the incident beam. We conduct a detailed study of the thermal sensor with differences in the width of central microcavity of N-LC. The sensitivity and quality factor are evaluated. Compared to other photonic crystal sensors mentioned previously, this thermal optical sensor has a much simpler structure and higher sensitivity.

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Section: Introductionmentioning

confidence: 99%

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

Charik¹,

Bouras²,

Bennacer³

2021

PIER M

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“…With adjustable permeability by magnetic fields, ferrite is also attractive for devices in the terahertz or optical range [9][10][11]. Since the liquid crystal (LC) is fluid, it is better used for volume devices, like waveguides [12], or flexible components, like wearable filters [13].…”

Section: Introductionmentioning

confidence: 99%

Design of a Liquid-Crystal-Tunable Terahertz Demultiplexer Based on a Metal-Insulator-Metal Waveguide

Feng

et al. 2019

Applied Sciences

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A tunable demultiplexer with three output channels infiltrated by liquid crystal (LC) is presented, which is based on a metal-insulator-metal (MIM) waveguide. The operating frequencies of the three output channels can be tuned simultaneously at will by changing the external bias electric field applied to the LC. By analyzing the Fabry-Pérot (FP) resonance modes of the finite-length MIM waveguide both theoretically and numerically, the locations of the three channels are delicately determined to achieve the best demultiplexing effects. Terahertz (THz) signals input from the main channel can be demultiplexed by channels 1, 2 and 3 at 0.7135 THz, 1.068 THz and 1.429 THz, respectively. By applying an external electric field to alter the tilt angle of the infiltrating LC material, the operating frequencies of channels 1, 2 and 3 can be relatively shifted up to 12.3%, 9.6% and 9.7%, respectively. The designed demultiplexer can not only provide a flexible means to demultiplex signals but also tune operating bands of output channels at the same time.

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Theoretical study of liquid crystal dielectric-loaded plasmonic waveguide

Cited by 2 publications

References 26 publications

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

Design of a Liquid-Crystal-Tunable Terahertz Demultiplexer Based on a Metal-Insulator-Metal Waveguide

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