Ultracompact programmable silicon photonics using layers of low-loss
phase-change material Sb$_2$Se$_3$ of increasing thickness
Ultracompact programmable silicon photonics using layers of low-loss
phase-change material Sb$_2$Se$_3$ of increasing thickness
High-performance programmable silicon photonic circuits are considered to be a critical part of next generation architectures for optical processing, photonic quantum circuits and neural networks. Low-loss optical phase change materials (PCMs) offer a promising route towards non-volatile free-form control of light. Here, we exploit direct-write digital patterning of waveguides using …