We are excited to announce that our paper “Absorption and scattering limits of silicon nitride integrated photonics in the visible spectrum” has been published in Optics Express (https://doi.org/10.1364/OE.505892)!
In this work led by Dr. Mateus Corato-Zanarella under the supervision of Prof. Michal Lipson, our team demonstrated an ultra-low loss, high-confinement SiN platform that approaches the limits of absorption and scattering across the visible spectrum. Leveraging the sensitivity of microresonators to loss, we probed and discriminated each loss contribution with unparalleled sensitivity, and derived their fundamental limits and scaling laws as a function of wavelength, film properties and waveguide parameters. Through the design of the waveguide cross-section, we showed how to approach the absorption limit of the platform, and demonstrated the lowest propagation losses in high-confinement SiN to date across the visible spectrum. We envision that our techniques for loss characterization and minimization will contribute to the development of large-scale, dense photonic integrated circuits that redefine the loss limits of integrated platforms across the electromagnetic spectrum, with applications in quantum technologies, biosensing and scanning displays.
To find out more, please check out the full article here: https://doi.org/10.1364/OE.505892
Mateus thanks his co-authors Prof. Xingchen Ji and Prof. Aseema Mohanty for their support and contribution to the work.
