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Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
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New SmAPF Mesogens Designed for Analog Electrooptics Applications.

Eva D Korblova1,2, Edward Guzman3,4, Joseph E Maclennan5,6

  • 1Department of Chemistry and Biochemistry, University of Colorado, 215 UCB, Boulder, CO 80309-0215, USA. Eva.Korblova@Colorado.EDU.

Materials (Basel, Switzerland)
|November 10, 2017
PubMed
Summary
This summary is machine-generated.

Researchers explored novel ferroelectric liquid crystal phases for electrooptic applications. They designed new materials to enhance modulation capabilities and expand phase structure, paving the way for advanced optical devices.

Keywords:
SmAPF phasebent-core liquid crystalsferroelectric liquid crystalspolar and achiral liquid crystal phase

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Area of Science:

  • Materials Science
  • Liquid Crystals
  • Organic Chemistry

Background:

  • The orthogonal ferroelectric bent-core SmAPF phase was previously realized in mesogens with a tricarbosilane-terminated alkoxy tail.
  • This phase exhibits promising electrooptic properties, including analog phase-only electrooptic index modulation with optical latching.

Purpose of the Study:

  • To explore the "structure space" of the SmAPF phase by designing novel mesogens.
  • To optimize the dynamic range of index modulation and expand the structural diversity of the phase.

Main Methods:

  • Design and synthesis of two new classes of SmAPF mesogens.
  • Modification of the rigid core to alter the bend angle.
  • Replacement of the tricarbosilane tail with a polyfluorinated polyethylene glycol oligomer.

Main Results:

  • The first class of mesogens, with a lowered bend angle in the rigid core, aims to optimize the dynamic range of index modulation in parallel-aligned cells.
  • The second class of mesogens expands the structure space by incorporating a polyfluorinated polyethylene glycol oligomer tail.
  • These new designs contribute to a broader understanding and application potential of ferroelectric liquid crystal phases.

Conclusions:

  • The study successfully expands the known structure space of the ferroelectric bent-core SmAPF phase.
  • The designed mesogens offer pathways to tune electrooptic properties for potential applications in optical devices.