Smart Metasurfaces: New Era of Optics
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Smart Metasurfaces: New Era of Optics
Wed, 22/08/2018 - 14:30
Location:
Speaker:
Mohsen Rahmani
Affiliation:
Australian National University
Synopsis:
Metasurfaces are composed of single-layer or few-layer stacks of periodic subwavelength nanostructures that resonantly couple to the incident light, which can reproduce the functions of bulk optics, and on occasions, offer new functionalities that are not possible with conventional diffractive optics. In this seminar I will review my journey from metallic to dielectric and semiconductor metasurfaces in both linear and nonlinear regimes. I will show how an ultra-thin surface of various subwavelength nanostructures can offer exciting applications ranging from night vision technology to flat optics and ultra-sensitive bio-chemical and gas detection. This is why many consider metasurfaces a major player in the modern nanophotonics in 21st century.
Biography:
Mohsen Rahmani received the PhD from National University of Singapore (2013) followed by two years postdoc at Imperial College London. Currently, he is an Australian Research Council Discovery Early Career Research Fellow at the Australian National University (equivalent to EPSRC Fellow in the UK). He is the recipient of a number of national and international awards, including Early Career Medal from the International Union of Pure and Applied Physics, for outstanding contribution to the “Fundamental Aspects of Laser Physics and Photonics”, and an acknowledgement for scientific excellence in new materials technologies, from Senator the Hon Arthur Sinodinos AO, Minister for Industry, Innovation and Science Australia. Recently, he has been announced as a finalist for prestigious Australian Eureka Early Career Prize that is known as the Oscar of Science in Australia.