Near-infrared light directed reflection in a cholesteric liquid crystal

Lu, Hongbo; Xing, Jian; Wei, Cheng; Sha, Junqing; Zhang, G. B; Lv, Guoqiang; Zhu, Jun; Qiu, Longzhen

doi:10.1364/ome.7.004163

Cited by 5 publications

(1 citation statement)

References 24 publications

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“…The near-infrared range (NIR), so important in fiber-optic communication, was not the main spectral area for which organic mesomorphic materials were developed. Instead, they were developed for the visible range and the entire display industry associated with it [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Therefore, all organic materials, especially mesomorphs, used in the near-infrared range, are not materials dedicated to this range.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Mesomorphism and the Optical Properties of Alkyl-deuterated Nematogenic 4-[(2,6-Difluorophenyl)ethynyl]biphenyls

et al. 2021

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The synthesis and characterization of new deuterated liquid crystal (LC) compounds based on phenyl tolane core is described in this paper. The work presents an alternative molecular approach to the conventional LC design. Correlations between molecular structure and mesomorphic and optical properties for compounds which are alkyl-hydrogen terminated and alkyl-deuterium, have been drawn. The compounds are characterized by mass spectrometry (electron ionization) analysis and infrared spectroscopy. They show enantiotropic nematic behavior in a broad temperature range, confirmed by a polarizing thermomicroscopy and differential scanning calorimetry. Detailed synthetic procedures are attached. Synthesized compounds show a significantly reduced absorption in the near-infrared (NIR) and medium-wavelength infrared (MWIR) radiation range, and stand as promising components of medium to highly birefringent liquid crystalline mixtures.

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