Broadband plasmonic half-subtractor and digital demultiplexer in pure parallel connections.

ABSTRACT: Nanophotonic arithmetic circuits requiring cascaded Boolean operations are difficult to implement due to loss and footprint issues. In this work, we experimentally demonstrate plasmonic half-subtractor and demultiplexer circuits based on transmission-lines. Empowered by the unique polarization selectivity in the surface plasmon modal behaviors, both circuits are realized without cascading. The operations of the half-subtractor and demultiplexer can be performed using a single laser beam with three predefined linear polarizations. All of our experiments are performed using a 56 fs laser providing greater than 12.5 THz optical bandwidth. The experimental results are found in excellent quantitative accordance with numerical calculations. The photonic integrated circuit framework proposed in t

SUBMITTER: Wu PY 

PROVIDER: S-EPMC11501105 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature