Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Optically induced periodic structures in smectic-C liquid crystals.

A Jákli1, T Kósa, A Vajda

  • 1Liquid Cristal Institute, Kent State University, Ohio 44242, USA.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|April 17, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

GdVO<sub>4</sub> Raman laser of Lorentzian linewidth less than 3 Hz.

Optics letters·2026
Same author

Freedericksz transitions in the nematic and smectic Z<sub>A</sub> phases of DIO.

Soft matter·2025
Same author

^{115}In^{+}-^{172}Yb^{+} Coulomb Crystal Clock with 2.5×10^{-18} Systematic Uncertainty.

Physical review letters·2025
Same author

Phase transitions, Dirac and Weyl semimetal states in Mn<sub>1-x</sub>Ge<sub>x</sub>Bi<sub>2</sub>Te<sub>4</sub>.

Scientific reports·2025
Same author

Low field electrocaloric effect at isotropic-ferroelectric nematic phase transition.

Soft matter·2024
Same author

Improved Limits on the Coupling of Ultralight Bosonic Dark Matter to Photons from Optical Atomic Clock Comparisons.

Physical review letters·2023
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

We investigated optically induced periodic structures in liquid crystals. Smectic-C (SmC) phases exhibit enhanced diffraction efficiency compared to nematic phases, despite complex director dynamics.

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Liquid Crystal Physics

Background:

  • Periodic structures in liquid crystals are crucial for optical applications.
  • Understanding director field behavior in different liquid crystal phases is essential.
  • Photosensitive substrates offer dynamic control over liquid crystal alignment.

Purpose of the Study:

  • To explore optically induced periodic structures in smectic-C (SmC) liquid crystals using a polarization grating.
  • To compare the formation and properties of periodic structures in nematic, SmA, and SmC phases.
  • To analyze the influence of substrate properties and director dynamics on diffraction efficiency.

Main Methods:

  • Utilized a polarization grating to optically induce periodic structures.

Related Experiment Videos

  • Employed cells with passive rubbed polyimide and active azo-dye doped polyimide substrates.
  • Analyzed director field behavior and layer structures in nematic, SmA, and SmC phases.
  • Measured diffraction efficiency of the induced periodic patterns.

    • Main Results:

    • Periodic structures were induced in nematic, SmA, and SmC phases.
    • SmC phase exhibited complex director rotation on a cone.
    • Periodic patterns superimposed with multiple director and layer structures.
    • SmC phase showed higher diffraction efficiency than the nematic phase, despite structural complexity.

    Conclusions:

    • Optically induced periodic structures in SmC liquid crystals are feasible and exhibit unique director dynamics.
    • SmC phase offers superior diffraction efficiency for periodic structures compared to nematic phase.
    • The findings have implications for advanced optical devices utilizing liquid crystals.