Integrated polariton condensate in SOI high contrast grating microcavities

A promising approach towards the next generation of computing architectures are all-optical logic gates1. Strong light-matter coupling based free space all-optical transistors have recently demonstrated showing ultra-fast switching at room-temperature2. Here, we use silicon-on-insulator high index contrast grating microcavities to demonstrate polariton condensation and strong light-matter interaction on a chip. This opens the door for integrated all-optical transistors with scalability towards more complex optical logic circuits operating at room temperature.