title: Magnetically tunable room-temperature 2 pi liquid crystal terahertz phase shifter.
abstract: Tunable phase shift up to 360 degrees at 1 THz is achieved with a liquid crystal (LC) device. The key to this design is (1) the use of a nematic LC, E7, which exhibits a birefringence of ~ 0.17 (0.2 - 1.2 THz); (2) a LC cell (3-mm in thickness) with sandwiched structure to increase the interaction length while minimizing interface Fresnel losses; and (3) the use of magnetic field to align the thick LC cell and achieve continuous tuning of phase from 0 to 360 degrees . This device can be operated over a broad range near room temperature.
authors.forename: Chao-Yuan
authors.initials: CY
authors.lastname: Chen
authors.forename: Cho-Fan
authors.initials: CF
authors.lastname: Hsieh
authors.forename: Yea-Feng
authors.initials: YF
authors.lastname: Lin
authors.forename: Ru-Pin
authors.initials: RP
authors.lastname: Pan
authors.forename: Ci-Ling
authors.initials: CL
authors.lastname: Pan