Title :
Optical beam-steering using a hybrid plasmonic Rotman lens
Author :
Ashrafi-Nia, Behzad ; Yousefi, Leila ; Shahabadi, Mahmoud
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Tehran, Tehran, Iran
Abstract :
An integrated optical phased array is proposed to provide optical beam-steering at the standard telecommunication wavelength of 1550 nm. To realize the desired phase shift, a hybrid plasmonic Rotman lens is designed. Hybrid plasmonic structures have lower losses and also provide more confinement for light when compared to pure plasmonic structures. Numerical results show that the proposed design provides ±29° beam steering for an 8-element linear array. The proposed structure can be used for applications such as time-domain THz spectroscopy, low-cost integrated LIDAR systems, and optical wireless communication.
Keywords :
beam steering; integrated optics; lenses; metamaterial antennas; nanophotonics; optical arrays; optical design techniques; optical losses; optical phase shifters; plasmonics; terahertz spectroscopy; 8-element linear array; hybrid plasmonic Rotman lens; integrated optical phased array; light confinement; low-cost integrated LIDAR systems; nanoantennas; optical beam steering; optical losses; optical wireless communication; phase shift; standard telecommunication wavelength; time-domain THz spectroscopy; Integrated optics; Optical beams; Optical reflection; Optical sensors; Optical Beam Steering; Rotman Lens; THz Time-Domain Spectroscopy;
Conference_Titel :
Millimeter-Wave and Terahertz Technologies (MMWATT), 2014 Third Conference on
Print_ISBN :
978-1-4799-6590-8
DOI :
10.1109/MMWaTT.2014.7057205
