Journal
OPTICS EXPRESS
Volume 21, Issue 10, Pages 12395-12400Publisher
Optica Publishing Group
DOI: 10.1364/OE.21.012395
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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. (C) 2013 Optical Society of America
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