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P‐110: Negative Dispersion of Birefringence in Smectic Liquid Crystal‐Polymer Composite
Author(s) -
Yang Seungbin,
Lee Hyojin,
Lee JiHoon
Publication year - 2015
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.10115
Subject(s) - birefringence , liquid crystal , materials science , monomer , dispersion (optics) , composite number , polymer , optics , composite material , optoelectronics , physics
In this paper, we reported a new type negative dispersion (ND) retarder using a self‐organization of smectic liquid crystal (LC) and polymer composite. A smectic LC absorbing a short wavelength (λ) of ultra‐violet (UV) light was mixed with reactive monomers absorbing a long λ of UV light. The constituent molecules have intrinsically positive dispersion (PD) property. The mixtures were self‐organized forming a two‐dimensional structure where the reactive monomers were located in the inter‐layer space of the smectic LC. The composite showed a gradual transition from PD to ND of birefringence (Δn) with increasing the monomer concentration.