Dependence of optical phase modulation on anchoring strength of dielectric shield wall surfaces in small liquid crystal pixels

We demonstrated that the uniform phase modulation in a pixel can be realized by optimizing the anchoring strength on the walls and the wall width in the dielectric shield wall structure, which is the needed pixel structure for realizing a 1-µm-pitch optical phase modulator. The anchoring force degra...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 57; no. 3S2; p. 3
Main Authors Isomae, Yoshitomo, Shibata, Yosei, Ishinabe, Takahiro, Fujikake, Hideo
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society of Applied Physics 01.03.2018
Japanese Journal of Applied Physics
Subjects
Anchoring
Dependence
Dielectric strength
Liquid crystals
Optimization
Phase modulation
Pixels
Rotating liquids
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Summary:We demonstrated that the uniform phase modulation in a pixel can be realized by optimizing the anchoring strength on the walls and the wall width in the dielectric shield wall structure, which is the needed pixel structure for realizing a 1-µm-pitch optical phase modulator. The anchoring force degrades the uniformity of the phase modulation in ON-state pixels, but it also keeps liquid crystals from rotating against the leakage of an electric field. We clarified that the optimal wall width and anchoring strength are 250 nm and less than 10−4 J/m2, respectively.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.57.03EG06