P1-0099 — Annual report 2013
1.
Variable contrast, wide viewing angle LCD light-switching filter

Granting of US patent, which protect new concept of the optical filter allowing for high, electrically controlled, variable light attenuation is described. It exhibits low light attenuation dependence for the oblique incidence of light in compliance with the EN 379 Standard. According to the invention, the problem is solved by novel modification of the STN LCDs, allowing for the adaptation of the light transmission/driving voltage characteristics to the driving electronics as well as "symmetrizing" the overall optical birefringent properties, which in turn results in a high degree of their angular compensation.

F.09 Development of a new technological process or technology

COBISS.SI-ID: 25659687
2.
Procedure for synthesis of threadlike tungsten oxide W[sup]5O[sup](14)

Granting of US patent, which protects new synthesis path to these technologicaly important oxides, which are electrically conductive, are good electron emitters and represent also the starting material for formation of WS2 nanobuds.

F.09 Development of a new technological process or technology

COBISS.SI-ID: 20624167
3.
Resonant transfer of light from a planar waveguilde into a tunable nematic liquid crstal microcavity

We demonstrate the resonant transfer of light from a planar waveguide to a nematic liquid-crystal microdroplet immersed in water. When liquid crystal microdroplet, which also act as an optical microresonator, is placed in the contact with the optical waveguide, the evanescent field of the light in the waveguide is resonantly coupled to the whispering-gallery mode resonances in the droplet. This experiment shows, that soft matter microelements can be used in advanced photonic systems, such as frequency filters, optical switches and sensors.

B.04 Guest lecture

COBISS.SI-ID: 26699303
4.
Slobodan Žumer was a member of the Editorial board of the journal "Liquid Crystals" in the period 2010-2013; ISSN 0267-8292.

The "Liquid Crystals" journal is the leading world scientific journal in the field of liquid crystals and it is published by Taylor and Francis Group. The current impact factor of the journal is 1.959.

C.06 Editorial board membership

5.
4 invited participants in the program "The Mathematics of Liquid Crystals" at Isaac Newton Institute for Mathematical Sciences, Cambridge, UK

4 researchers of the program "Physics of soft matter, surfaces and nanostructures" Samo Kralj, Miha Ravnik, Gregor Skačej and Slobodan Žumer were invited paticipants of the program "The Mathematics of Liquid Crystals" at Isaac Newton Institute for Mathematical Sciences University of Cambridge, UK. In total we spent 150 days in Cambridge and have presented 4 invited talks within workshops. The recorded videos are available at http://www.newton.ac.uk/programmes/MLC/: M. Ravnik, Design of liquid crystal superstructures: geometry, topology, flow, and mesophase [COBISS.SI-ID 2547044]; G. Skačej, Molecular modeling of liquid crystal elastomers [COBISS.SI-ID 2546788], both within the workshop "Analytical and Computational Paths from Molecular Foundations to Continuum Description", 18 - 22 March 2013. S. Žumer, Nematic braids: effects of chirality and confinement [COBISS.SI-ID 2575204]; M. Ravnik, Three-dimensional liquid crystalline superstructures for photonics[ COBISS.SI-ID 2575460], both within workshop "Liquid Crystal Defects and their Geometry, Active and Solid Liquid Crystals, and Related Systems", 24 - 28 June 2013.

B.04 Guest lecture