TY - JOUR A1 - Stumpe, Joachim A1 - Sakhno, O. A1 - Gritsai, Y. A1 - Rosenhauer, R. A1 - Fischer, Th. A1 - Rutloh, Michael A1 - Schaal, F. A1 - Weidenfeld, S. A1 - Jetter, M. A1 - Michler, P. A1 - Pruss, C. A1 - Osten, W. T1 - Active and passive LC based polarization elements JF - Molecular crystals and liquid crystals N2 - Passive and active polarization elements were created by surface and bulk photo-alignment of LCs, reactive LCs, photo-sensitive LCP and photo-curable monomer/LC composites. The use of different photo-sensitive liquid crystalline materials for the development of highly anisotropic elements with high spatial resolution and stability or, alternatively, fast switch ability will be discussed. Photo-active and voltage tunable polarization and diffraction elements are presented. For active micro-optic application a photo-addressed patterned retarder was created. Electrically switchable diffraction gratings were generated by interference exposure of photo-curable LC composites at room temperature characterized by droplet free morphology. These polarization sensitive diffraction elements are characterized be excellent optical properties and low switching times. KW - electrically switchable gratings. KW - diffractive elements KW - polymer/LC composites KW - switchable retarder KW - polarization gratings KW - Polarization elements Y1 - 2014 U6 - https://doi.org/10.1080/15421406.2014.917503 SN - 1542-1406 SN - 1563-5287 VL - 594 IS - 1 SP - 140 EP - 149 PB - Routledge, Taylor & Francis Group CY - Abingdon ER -