Paper 13110-75
Paper 13110-75
Antimony sulphide: programmable photonics and beyond (Invited Paper)
22 August 2024 • 8:55 AM - 9:20 AM PDT
Abstract
Sb2S3 is currently being developed for programmable photonics applications. It is particularly appealing because it has a relatively large bandgap of 2.05 eV in the amorphous state, which means that it is transparent in the visible spectrum. Moreover, the phase change invokes a large change in refractive index, which means that it can be used to tune photonic resonators. We have used this effect to demonstrate programmable couplers, nano resonator display pixels, and beam steering metasurfaces. In this talk I will discuss these works, and then the challenges and opportunities for Sb2S3 photonics. I will also discuss how it has the potential to revolutionise the fields of communication, information, and health.
Presenter
Robert E. Simpson
Univ. of Birmingham (United Kingdom)
Robert E. Simpson is an Associate Professor in the School of Engineering at the University of Birmingham in the UK. Before Birmingham Robert spent 10 years at the Singapore University of Technology and Design (SUTD) where he formed the Advanced Chalcogenides Technologies & Applications Lab. Robert also spent his postdoc years as a Marie Curie and JSPS fellows in the Institute of Photonic Science (ICFO) in Spain and the Japanese Advanced Industrial Science and Technology (AIST) institute in Japan, where he developed phase change material tuned photonics devices and interfacial phase change memory, respectively. These days Robert aims to apply nanostructured chalcogenides to sensing and detection devices.