Monolithically integrated mode converter from terahertz substrateless silicon guide to conductive slotline
Daniel Headland,
Panisa Dechwechprasit,
Withawat Withayachumnankul
Abstract:Although substrateless micro-scale silicon waveguides are a useful and versatile platform for terahertz waves, the fact that modal fields occupy the volume of the core limits the potential to dynamically manipulate guided waves. To address this, we introduce an aperiodic lattice structure to enable the monolithic co-integration of a Vivaldi antenna-like mode converter with a substrateless silicon waveguide. This broadband transition is experimentally confirmed to exhibit ∼2.5 dB average loss for two couplers, … Show more
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