title: Polymer stabilized liquid crystal phase shifter for terahertz waves.
abstract: We propose an electrically tunable phase shifter for terahertz frequencies. The device is based on a polymer stabilized liquid crystal which allows for a simple device geometry. The polymer stabilized liquid crystal enables continuous tuning of the introduced phase shift with only one pair of electrodes. By characterizing the device with terahertz time-domain spectroscopy we demonstrate a phase shift up to 2.5 terahertz, only slightly changed properties of the neat liquid crystal and significantly reduced response times.
authors.affiliation: Faculty of Physics and Material Sciences Center, Philipps-Universität Marburg, Renthof 5, 35032 Marburg, Germany.
authors.forename: Kristian
authors.initials: K
authors.lastname: Altmann
authors.forename: Marco
authors.initials: M
authors.lastname: Reuter
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Garbat
authors.forename: Martin
authors.initials: M
authors.lastname: Koch
authors.forename: Roman
authors.initials: R
authors.lastname: Dabrowski
authors.forename: Ingo
authors.initials: I
authors.lastname: Dierking
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D050866:Liquid Crystals / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D055053:Terahertz Radiation
chemical_list: D011108:Polymers