Optically isotropic-nanostructured liquid crystal composite with high Kerr constant

Choi, Suk Won; Yamamoto, Shin Ichi; Haseba, Yasuhiro; Higuchi, Hiroki; Kikuchi, Hirotsugu

doi:10.1063/1.2838352

Cited by 115 publications

(69 citation statements)

References 9 publications

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“…(1), the remaining approach is to boost DnÁDe because k is more difficult to control. 3 The LC birefringence is mainly determined by the conjugation length. Considering the material stability, melting temperature, and viscosity, terphenyl derivatives could be the longest conjugation for BPLCs.…”

mentioning

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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139

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

139

107

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“…According to Choi et al [123], the ratio of k 33 (bend) to k 11 (splay) is fairly influential to the coefficient k.…”

Section: Optical Isotropy and Fast Electro-optic Responsementioning

confidence: 98%

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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“…To reduce the driving voltage, we can adopt the host BP-LC with high birefringence, large Kerr constant, large dielectric anisotropy ͑⌬͒, and large ratio of bend elastic constant ͑K 33 ͒ to splay elastic constant ͑K 11 ͒. [18][19][20] The response time is also important for phase modulators. The measured response times are shown in Figs.…”

Section: Polarizer-free and Fast Response Microlens Arrays Using Polymentioning

confidence: 99%

Polarizer-free and fast response microlens arrays using polymer-stabilized blue phase liquid crystals

Lin¹,

Chen²,

Lin³

et al. 2010

Applied Physics Letters

220

123

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We demonstrate polarizer-free and fast response microlens arrays based on optical phase modulation of polymer-stabilized blue phase liquid crystal (PSBP-LC). Polarization-independent optical phase shift is because the propagation of an incident light is along the optic axis of PSBP-LC, and birefringence of PSBP-LC induced by Kerr effect results in electrically tunable optical phase shift. The measured optical phase shift of a PSBP-LC phase modulation is around π radian at 150 Vrms for the cell gap of 7 μ. The response time is about 3 ms. The focal length is around 13.1 cm at 100 Vrms.

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Optically isotropic-nanostructured liquid crystal composite with high Kerr constant

Cited by 115 publications

References 9 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

Polarizer-free and fast response microlens arrays using polymer-stabilized blue phase liquid crystals

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