Date
Place
- Room E (Room 321)
- 5. Plasmonics and Metamaterials for Display I
- August 19, 2015 (Wednesday)
- 09:00 ~ 10:05
- [5-1]
- 09:00 ~ 09:25
- Title:[Invited] Beam Steering by an Optical Antenna
- Chang-Won Lee, Yeonsang Park, Jineun Kim, Sangmo Cheon, Young-Geun Roh (Samsung Advanced Inst. of Tech., Korea), and Q-Han Park (Korea Univ., Korea)
Abstract: We present a demonstration of a multi-slot optical antenna consisting of a magnetic dipole feed and a director?reflector combination.?We clearly show a slot feed can indeed work as a dipole feed even in a Babinet-inverted Yagi-Uda structure.?Our work vividly shows plasmonic coupling utilizing the real surface plasmonic energy exchange inherent in slots, unlike embossed types such as bow-tie or rod antennas. Full FDTD simulations and experimental data for the electromagnetic phases evaluated at the center of the slot reveal a leading order behavior of coupling behavior between the slots.?We successfully draw a comprehensive map for the antenna performances from two to five slots to find and to analyze the front-to-back ratio with respect to a number of antenna geometries.?
PDF Download
Type
