home Â» news

[Nest Seminar] Electronically Reconfigurable Liquid Metals for Active Terahertz Signal Processing  

Pisa - 13.10.2017 - [Nest Seminar] Electronically Reconfigurable Liquid Metals for Active Terahertz Signal Processing
Friday October 13th - 10:00 NEST Seminar room Speaker: Kimberly Reichel (Brown University,Providence (USA) Title:Electronically Reconfigurable Liquid Metals for Active Terahertz Signal Processing Abstract: Terahertz (THz) frequencies show promise to increase wireless communications spectral capacity and provide short-range high-bandwidth links. Some waveguide based devices for signal processing have been demonstrated, but these devices are passive due to the fixed metallic geometry. Here, we introduce an active switchable channel add-drop filter. By incorporating electrically actuated liquid metal filled capillaries in the gap between two waveguides, the coupling between waveguides at the filter frequency is dynamically controlled with an on-off ratio of nearly 40 dB. We characterize this device using broadband terahertz pulses, and then demonstrate the channel switching capability using a 1 Gb/sec data stream. This successful preliminary work shows promising expectations for active THz devices based on electronically reconfigurable liquid metals. Host: Miriam Vitiello


 


Valid XHTML 1.0 Transitional