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1999•Applied Physics LettersRequires access

Optical switching of nematic liquid crystal by means of photoresponsive polyimides as an alignment layer

Gi Heon Kim, Shintaro Enomoto, Akihiko Kanazawa, Takeshi Shiono, Tomiki Ikeda, Lee-Soon Park

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Abstract

Photosensitive polyimides (PIs) as an alignment layer induced optical switching of nematic liquid crystal (NLC) on photoirradiation at 366 nm. The orientation of NLC molecule was changed from homogeneous to homeotropic alignment on photoirradiation with a dc electric field as a bias. The optical switching behavior of NLC was largely affected by the chemical structures of PIs.

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What this paper is about

Photosensitive polyimides (PIs) as an alignment layer induced optical switching of nematic liquid crystal (NLC) on photoirradiation at 366 nm. The orientation of NLC molecule was changed from homogeneous to homeotropic alignment on photoirradiation with a dc electric field as a bias. The optical switching behavior of NLC was largely affected by the chemical structures of PIs.

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Available abstract

Photosensitive polyimides (PIs) as an alignment layer induced optical switching of nematic liquid crystal (NLC) on photoirradiation at 366 nm. The orientation of NLC molecule was changed from homogeneous to homeotropic alignment on photoirradiation with a dc electric field as a bias. The optical switching behavior of NLC was largely affected by the chemical structures of PIs.

Key concepts: Homeotropic alignment, Liquid crystal, Materials science, Layer (electronics), Electric field, Optical switch, Optoelectronics, Molecule

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