Prof. Mo Li’s group at the University of Washington led this work, the first demosntration of direct-write and rewritable photonic integrated circuits in Sb2Se3 thin films. This method enables rapid prototyping and testing in a convenient and cost-efficient manner, eliminate the need for nanofabrication facilities, and thus promote the proliferation of photonics research and education to a broader community.

Our group’s contribution centered in developing and optimizing the deposition of high-quality, low-roughness Sb2Se3 thin films, using ultra-high vacuum sputtering.

Read the news release by the University of Washington: https://www.ece.uw.edu/spotlight/a-laser-printer-for-photonic-chips/

Also, our work hit the news, see for instance:
Photonics.com: Team Develops Laser Printer for PICs
Physics.org:Team develops a laser printer for photonic chips