Title

Low Loss Liquid Crystals For Infrared Applications

Keywords

liquid crystal; low absorption; mid-wave infrared

Abstract

Seven fluorinated and chlorinated terphenyl compounds intended for mid-wave infrared (MWIR) applications are synthesised and two eutectic mixtures formulated, and their physical properties evaluated. In addition to low absorption, some desirable properties for MWIR applications include wide nematic range, high birefringence, large dielectric anisotropy and low viscosity. The fluorinated terphenyl mixture exhibits a relatively low absorption in the vicinities of λ ~ 3 μm, but a fairly strong overtone appears in the 4–5 μm region. To suppress these overtone absorptions, short-chain chlorinated terphenyl compounds are proven to be useful.

Publication Date

11-2-2014

Publication Title

Liquid Crystals

Volume

41

Issue

11

Number of Pages

1545-1552

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/02678292.2014.932452

Socpus ID

84908869507 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84908869507

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