Freeform direct-write and rewritable photonic integrated circuits in phase-change thin films
Freeform direct-write and rewritable photonic integrated circuits in phase-change thin films
We report direct-write and rewritable photonic circuits based on a low-loss phase change material (PCM) thin film Sb2Se3, in which complete end-to-end functional photonic circuits can be created by direct laser writing in one step without additional fabrication processes. The direct-write phase-change photonic circuit affords exceptional flexibility, allowing any part …