Hosted By: Photonic Detection Technical Group
8 June 2020, 10:00 - 11:00 EasternTime
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Metamaterials with a refractive index of zero exhibit extreme physical properties, including infinite phase velocity and wavelength. Until recently, it was not possible to implement such a material on a photonic chip.
In this webinar hosted by the OSA Photonic Detection Technical Group, Prof. Yang Li of Tsinghua University will discuss how they designed and fabricated an on-chip integrated metamaterial with a refractive index of zero in the optical regime, opening the door to exploring the physics of light propagation in zero-index media. Prof. Li will also present how they demonstrated that the index of refraction is zero by observing the refraction of light though a prism made of this metamaterial and by directly observing the (infinite) effective wavelength in a zero-index waveguide. The zero-index metamaterial can be fabricated using standard planar processes over a large area and in any shape, and can be impedance matched to other optical components, so it can be readily integrated in photonic circuits.
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Prof. Li received B.S. degree in telecommunication engineering (2006) and M.S. degree in electromagnetic field and microwave technology (2008) from Huazhong University of Science and Technology, China, and Ph.D. degree in Electrical Engineering (2012) from Iowa State University. From 2013 to 2018, Prof. Li was a Postdoctoral Fellow of Mazur group at Harvard University. Prof. Li’s current research interests include integrated metamaterials, nanophotonics, quantum photonics, electromagnetic nondestructive evaluation. Prof. Li received the IEEE Antennas and Propagation Society Doctoral Research Award and was nominated for the R.W.P. King Award. Prof. Li was a Co-PI of several NSF and Samsung grants.