Electrically tunable refractive index in the dark conglomerate phase of a bent-core liquid crystal

M. Nagaraj; V. Görtz; J. W. Goodby; H. F. Gleeson

doi:10.1063/1.4861837

Electrically tunable refractive index in the dark conglomerate phase of a bent-core liquid crystal

M. Nagaraj, V. Görtz, J. W. Goodby, H. F. Gleeson

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

Here we report an electrically tunable refractive index observed in an isotropic liquid crystal phase
known as the dark conglomerate (DC) phase. This unusual change in the refractive index which has
Here we report an electrically tunable refractive index observed in an isotropic liquid crystal phase known as the dark conglomerate (DC) phase. This unusual change in the refractive index which has not been reported before in the DC phase of other bent-core liquid crystals occurs because of a series of electric-field-driven transformations that take place in the DC phase of the studied bent-core liquid crystal. These transformations give rise to a decrease in the refractive index of the system, when an electric field is applied across the device, and no change in the birefringence is seen during such behavior. The electro-optic phenomenon is described in detail and the possibility of exploiting this for a number of liquid crystal based device applications is discussed.

Original language	English
Article number	021903
Journal	Applied Physics Letters
Volume	104
Issue number	2
DOIs	https://doi.org/10.1063/1.4861837
Publication status	Published - 13 Jan 2014

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10.1063/1.4861837

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Biaxial nematic liquid crystals
Goodby, J. W. (Principal investigator) & Cowling, S. J. (Co-investigator)
EPSRC
1/12/09 → 30/11/12
Project: Research project (funded) › Research

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abstract = "Here we report an electrically tunable refractive index observed in an isotropic liquid crystal phaseknown as the dark conglomerate (DC) phase. This unusual change in the refractive index which hasHere we report an electrically tunable refractive index observed in an isotropic liquid crystal phase known as the dark conglomerate (DC) phase. This unusual change in the refractive index which has not been reported before in the DC phase of other bent-core liquid crystals occurs because of a series of electric-field-driven transformations that take place in the DC phase of the studied bent-core liquid crystal. These transformations give rise to a decrease in the refractive index of the system, when an electric field is applied across the device, and no change in the birefringence is seen during such behavior. The electro-optic phenomenon is described in detail and the possibility of exploiting this for a number of liquid crystal based device applications is discussed.",

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AU - Görtz, V.

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N2 - Here we report an electrically tunable refractive index observed in an isotropic liquid crystal phaseknown as the dark conglomerate (DC) phase. This unusual change in the refractive index which hasHere we report an electrically tunable refractive index observed in an isotropic liquid crystal phase known as the dark conglomerate (DC) phase. This unusual change in the refractive index which has not been reported before in the DC phase of other bent-core liquid crystals occurs because of a series of electric-field-driven transformations that take place in the DC phase of the studied bent-core liquid crystal. These transformations give rise to a decrease in the refractive index of the system, when an electric field is applied across the device, and no change in the birefringence is seen during such behavior. The electro-optic phenomenon is described in detail and the possibility of exploiting this for a number of liquid crystal based device applications is discussed.

AB - Here we report an electrically tunable refractive index observed in an isotropic liquid crystal phaseknown as the dark conglomerate (DC) phase. This unusual change in the refractive index which hasHere we report an electrically tunable refractive index observed in an isotropic liquid crystal phase known as the dark conglomerate (DC) phase. This unusual change in the refractive index which has not been reported before in the DC phase of other bent-core liquid crystals occurs because of a series of electric-field-driven transformations that take place in the DC phase of the studied bent-core liquid crystal. These transformations give rise to a decrease in the refractive index of the system, when an electric field is applied across the device, and no change in the birefringence is seen during such behavior. The electro-optic phenomenon is described in detail and the possibility of exploiting this for a number of liquid crystal based device applications is discussed.

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VL - 104

JO - Applied Physics Letters

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Electrically tunable refractive index in the dark conglomerate phase of a bent-core liquid crystal

Abstract

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Biaxial nematic liquid crystals

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