We integrate monolayer MoSe₂ with a plasmonic nanocircuit and demonstrate the coherent selective routing of the enhanced nonlinear optical signal emitted by the 2D semiconductor, with routing extinction ratios up to 14.86 dB.

https://doi.org/10.1038/s41467-024-46209-8

Anand wins Best Poster Award at OPTIC 2022.

We experimentally demonstrate the first 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.

https://doi.org/10.1515/nanoph-2022-0267