Low voltage and high contrast blue phase liquid crystal with red-shifted Bragg reflection

Yan, Jin; Luo, Zhenyue; Wu, S.; Shiu, Jyh‐Wen; Lai, Yu-Cheng; Cheng, Kung‐Lung; Liu, Shih-Hsien; Hsieh, Pao-Ju; Tsai, Yuan-Chun

doi:10.1063/1.4773985

Cited by 42 publications

(31 citation statements)

References 30 publications

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“…(1) indicates to enlarge K by increasing pitch length seems to be a straightforward approach because K is proportional to p 2 . However, this approach has its own limitations, as reported by Yan et al 24 Therefore, it is better to keep Bragg reflection in the UV region ($350 nm). From Eq.…”

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confidence: 99%

A low voltage and submillisecond-response polymer-stabilized blue phase liquid crystal

Chen¹,

Xu²,

Wu³

et al. 2013

Applied Physics Letters

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140

107

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We report a polymer-stabilized blue phase liquid crystal (BPLC) whose Kerr constant is about 2.2× larger than previous record. When filled in a 3.2-μm-thick vertical field switching cell, the on-state voltage is merely 8.4 V (at λ = 514 nm) while keeping submillisecond response time and negligible hysteresis (<1%) at the room temperature. These results imply that the dawn of BPLC era for high speed display and photonic devices has finally arrived.

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mentioning

confidence: 99%

A low voltage and submillisecond-response polymer-stabilized blue phase liquid crystal

Chen¹,

Xu²,

Wu³

et al. 2013

Applied Physics Letters

Self Cite

140

107

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“…To tackle the former problem, the included angle between the absorption axes of the crossed polarizers needs to be adjusted. But, replacing the linear polarizers by the circular ones could prove effective in avoiding both problems [132]. Aside from the Kerr constant, the design of electrode is as well essential to the resultant driving voltage.…”

Section: Optical Isotropy and Fast Electro-optic Responsementioning

confidence: 99%

Self-Organized 3D Photonic Superstructure: Blue Phase Liquid Crystal

Lin

Chen

2015

Anisotropic Nanomaterials

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Blue phase liquid crystals (BPLCs) have attracted considerable attention in recent years owing to their unique periodic structure and electro-optic properties. Besides the potential applications in the next generation display, BPLC with a cubic lattice structure can be regarded as a self-organized three-dimenstional (3D) photonic crystal that can be applied for photonic devices such as optical filter, optical attenuator, phase modulator, laser source and so on. This chapter will introduce the formation of BPLCs from both theoretical and experimental points of view. The stability and temperature range of BPLCs are also discussed followed by its photonic crystal structure, lattice orientation and phase identification. After a basic overview, this chapter will further introduce the applications of BPLCs, including controllability of photonic band gap with external fields, fast electro-optic Kerr effect, and optical nonlinear effect. This short summary shows that the century old intriguing BPLCs have diverse opportunities to offer in modern photonic materials and devices. Moreover, the current challenges in this area are expected to spark innovative ideas leading toward the design and engineering of new chiral materials that may furnish suitable BPLCs to produce advanced photonic materials that have desirable properties and functions.

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“…By contrast, in our case, similar to polymer stabilized blue phase liquid crystals [27,28], we deal with the effective dielectric tensor of a nanostructured chiral smectic liquid crystal. This tensor (54) is defined through averaging over the FLC orientational structure.…”

Section: B Orientational Kerr Effectmentioning

confidence: 99%

Optics of short-pitch deformed-helix ferroelectric liquid crystals: Symmetries, exceptional points, and polarization-resolved angular patterns

Kiselev

Chigrinov

2014

Phys. Rev. E

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In order to explore electric-field-induced transformations of polarization singularities in the polarizationresolved angular (conoscopic) patterns emerging after deformed-helix ferroelectric liquid crystal (DHFLC) cells with subwavelength helix pitch, we combine the transfer matrix formalism with the results for the effective dielectric tensor of biaxial FLCs evaluated using an improved technique of averaging over distorted helical structures. Within the framework of the transfer matrix method, we deduce a number of symmetry relations and show that the symmetry axis of L lines (curves of linear polarization) is directed along the major in-plane optical axis which rotates under the action of the electric field. When the angle between this axis and the polarization plane of incident linearly polarized light is above its critical value, the C points (points of circular polarization) appear in the form of symmetrically arranged chains of densely packed star-monstar pairs. We also emphasize the role of phase singularities of a different kind and discuss the enhanced electro-optic response of DHFLCs near the exceptional point where the condition of zero-field isotropy is fulfilled.

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Low voltage and high contrast blue phase liquid crystal with red-shifted Bragg reflection

Cited by 42 publications

References 30 publications

A low voltage and submillisecond-response polymer-stabilized blue phase liquid crystal

A low voltage and submillisecond-response polymer-stabilized blue phase liquid crystal

Self-Organized 3D Photonic Superstructure: Blue Phase Liquid Crystal

Optics of short-pitch deformed-helix ferroelectric liquid crystals: Symmetries, exceptional points, and polarization-resolved angular patterns

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