Applications of Tamm plasmon-liquid crystal devices

Jeng, Shie Chang

doi:10.1080/02678292.2020.1733114

Cited by 18 publications

(10 citation statements)

References 52 publications

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“…The TPP manifests itself in experiments as a resonance in the optical spectra of a sample [5,6]. The interest in localized states of this type stems from their potential for use in various optical devices, including sensors [7][8][9], detectors [10][11][12], lasers [13][14][15], absorbers [16,17], filters [18][19][20], and solar cells [21,22].…”

Section: Introductionmentioning

confidence: 99%

Metal–Dielectric Polarization-Preserving Anisotropic Mirror for Chiral Optical Tamm State

et al. 2022

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This numerical study demonstrates the possibility of exciting a chiral optical Tamm state localized at the interface between a cholesteric liquid crystal and a polarization-preserving anisotropic mirror conjugated to a metasurface. The difference of the proposed structure from a fully dielectric one is that the metasurface makes it possible to decrease the number of layers of a polarization-preserving anisotropic mirror by a factor of more than two at the retained Q-factor of the localized state. It is shown that the proposed structure can be used in a vertically emitting laser.

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Section: Introductionmentioning

confidence: 99%

Metal–Dielectric Polarization-Preserving Anisotropic Mirror for Chiral Optical Tamm State

et al. 2022

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“…Numerous photonic and biomedical devices (filters [6], retarders and spatial light modulators [7], lenses [8], electrically controlled sensors [9], diffractive optics [10], and beam-steering devices [11,12]) rely on tunable optical elements made of liquid crystals. An emerging field of flat optics [13] along with the reconfigurability of plasmonic [14] and meta-devices [15] can also benefit from the tunability of liquid crystal materials. This tunability of liquid crystals enabled a wide range of microwave devices such as resonators, antennas, and phase shifters [16,17].…”

Section: Introductionmentioning

confidence: 99%

Steady-State and Transient Electrical Properties of Liquid Crystal Cells

Garbovskiy

Webb

2022

The 3rd International Online Conference on Crystals

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Rapidly expanding and new applications of liquid crystal materials cover a wide range of technology products. A very incomplete list includes conventional and miniature high-resolution displays, AR/VR glasses, smart windows, dynamic lenses, tunable filters and retarders, electrically controlled sensors, reconfigurable antennas for wireless and space communications, and many other commercially available devices. The aforementioned devices are enabled by the collective reorientation of thermotropic molecular liquid crystals under the action of applied electric fields. The reorientation effects in liquid crystals can be altered by ionic contaminants typically present in mesogenic materials in small quantities. Therefore, information about ions in liquid crystals is very important because it allows for a proper selection of liquid crystal materials and uncompromised performance of liquid crystal devices. This information can be obtained by performing electrical measurements of liquid crystal materials. Measurements of basic electrical parameters (DC conductivity, charge mobility and ion density) are carried out using sandwich-like liquid crystal cells of finite thickness. Once a cell is filled with liquid crystal materials, interactions between ions and the cell substrates will result in the time dependence of the ion density and DC electrical conductivity until a steady state is reached. In this paper, we show how complementary information about ionic processes in liquid crystal cells can be obtained by analyzing their transient and steady state electrical properties.

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“…The TPP appears between the metal and the periodic dielectric of high and low refractive indices, which is called a distributed Bragg reflector (DBR). Later it was shown that this state can be utilized for absorbers [ 11 ], sensors [ 12 , 13 , 14 ], Tamm plasmon lasers [ 15 , 16 , 17 ], and solar cells [ 18 , 19 ]. The excitation of chiral-selective TPP at the interface between a CLC and a flat metal film is impossible (please see Figure 1 a,b), and the resonance dip cannot be seen within the CLC stopband [ 20 ] unless the polarization of reflected light from the metal is changed.…”

Section: Introductionmentioning

confidence: 99%

Chiral-Selective Tamm Plasmon Polaritons

Lin

Bikbaev

et al. 2021

Materials

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Chiral-selective Tamm plasmon polariton (TPP) has been investigated at the interface between a cholesteric liquid crystal and a metasurface. Different from conventional TPP that occurs with distributed Bragg reflectors and metals, the chiral–achiral TPP is successfully demonstrated. The design of the metasurface as a reflective half-wave plate provides phase and polarization matching. Accordingly, a strong localized electric field and sharp resonance are observed and proven to be widely tunable.

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Applications of Tamm plasmon-liquid crystal devices

Cited by 18 publications

References 52 publications

Metal–Dielectric Polarization-Preserving Anisotropic Mirror for Chiral Optical Tamm State

Metal–Dielectric Polarization-Preserving Anisotropic Mirror for Chiral Optical Tamm State

Steady-State and Transient Electrical Properties of Liquid Crystal Cells

Chiral-Selective Tamm Plasmon Polaritons

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