Horst Leigeber | Researchain

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Featured researches published by Horst Leigeber.

Journal of Chemical Research-s | 1998

Azo Dyes as Side Chains in Liquid Crystalline Oligomers for Holographic Application

Oliver Haak; Cheung-Bok Jeoung; Andreas Pawlik; Peter Boldt; Walter Grahn; Franz-Heinrich Kreuzer; Horst Leigeber; Hans-Peter Dr. Weitzel

In a systematic study on materials for holographic data storage, a wide variety of azo dyes of different shapes and optical properties were covalently bound to cholesteric liquid crystalline oligosiloxanes; some of these materials exhibit high holographic efficiency and/or sensitivity but no general correlation between the holographic writing efficiency and/or the sensitivity with the structure was found.

Archive | 2000

Machine-detectable security marking with an increased level of proof against forgery, production of the security marking, and security system comprising this security marking

Christoph Dr. Müller-Rees; Jürgen Dr. Küpfer; Horst Leigeber; Georg Schwalb

Archive | 1998

Process for the production of three-dimensionally crosslinked polymeric materials having broad cholesteric reflection bands, and filters, reflectors and polarizers produced by this process

Horst Leigeber; Eckhard Hanelt; Franz-Heinrich Kreuzer

Archive | 2001

Methods for preparing flakes

Adolf Gurtner; Franz-Heinrich Kreuzer; Horst Leigeber; Volker Dr. Stanjek

Advanced Materials | 1993

Photoinduced generation of noncentrosymmetric structures in glassy liquid crystalline polysiloxanes for second harmonic generation

Hans Anneser; Franz Feiner; Andreas Petri; Christoph Bräuchle; Horst Leigeber; Hans-Peter Dr. Weitzel; Franz-Heinrich Kreuzer; Oliver Haak; Peter Boldt

Archive | 1998