We report on efficient optical beam-steering using a hot-embossed reflective blazed grating in combination with liquid crystal. A numerical simulation of the electrical switching characteristics of the liquid crystal is performed and the results are used in an FDTD optical simulator to analyze the beam deflection. The corresponding experiment on the realized device is performed and is found to be in good agreement. Beam deflection angles of 4.4 degrees upon perpendicular incidence are found with low applied voltages of 3.4V. By tilting the device with respect to the incoming optical beam it can be electronically switched such that the beam undergoes either total internal reflection or reflection with a tunable angle. (C) 2016 Optical Society of America
Original languageEnglish
Pages (from-to)21541-21550
JournalOpt. Express
Volume24
Issue number19
DOIs
Publication statusPublished - 19 Sep 2016

    Research areas

  • PHASED-ARRAY

ID: 27710651