Highly Resonant Optical Materials for Ultrafast All-Optical Light Manipulation

Expanding the spatiotemporal control of light into the subwavelength and subcycle domain represents an important milestone in the development of new photonic materials and technologies. In this talk, I will introduce high-Q dielectric Mie resonant metasurfaces as a viable material platform in this endeavor and show how subwavelength all-optical refractive index modulation in these surfaces enables reconfigurable light modulation with unprecedented spatial and temporal control. We present experimental results of all-optical beam steering, spatial back-action, linear frequency conversion, and ultrafast spatial light modulation. Our findings offer the possibility of realizing a host of new ultrafast physics and applications in signal processing, pulse shaping, and ultrafast imaging.

Speaker: Claudio Hail, UC Berkeley