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SUMMARY:Liquid crystal metamaterials from nematic colloidal platelets - An
 ja Pusovnik (University of Ljubljana  )
DTSTART:20190515T092000Z
DTEND:20190515T094000Z
UID:TALK124483@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Metamaterials are artificial materials with properties otherwi
 se not existing in nature. This is achieved through the design of its cons
 tituent building blocks\, which are generally several times smaller than t
 he operating wavelength. An interesting route for the fabrication of photo
 nic metamaterials is their self-assembly in liquid crystals. Here\, we fir
 stly determine the optimal geometrical parameters of a single split ring r
 esonator (SRR) colloidal particle in order to achieve the stability of the
  2D and 3D SRR structures in liquid crystals using free energy calculation
 s. Then we focus on the optical response of such a composed material\, not
 ably the resonances in the transmissivity spectra\, and tunability of opti
 cal properties of the SRR colloidal crystal with external fields.
LOCATION:Seminar Room 1\, Newton Institute
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