报告题目：From planar to conformable optics with metasurfaces
主持人：康司坦丁·多尔夫曼 研究员
时间：2017.11.30 下午1:30
地点：理科大楼A814
Current Position
2015 CNRS research Scientist I, (charge de recherche)
Centre de Recherche sur l'hetero-epitaxie et ses applications, Valbonne, France.
Previous research Positions and Education
2014 Senior Research Scientist I, grade 4
2011-2014 Research Associate at Harvard University
2009-2011 Post-Doctoral fellow at Harvard University
2006-2009 Ph.D in physics at University of Nice Sophia Antipolis
2004-2006 Master OMEGA option Nonlinear Dynamics at the University of Nice
Sophia Antipolis (UNSA), mention “très bien” obtained in july 2006.
Awards and scientific recognitions
2016- STAR Partenariat Hubert Curien (PHC) franco-coréen
2014- European Research Council Starting Grant (Starting date September 2015 for 5 years)
2006- PhD fellowship from the French Ministry of Higher Education and Research
Research interests and skills keywords
Nanophotonics, plasmonics, metamaterials, metasurfaces, nanofabrication including E-beam lithography, FIB, RIE etching and CVD, deposition, experimental optics (visible, near and mid-IR), Cherenkov radiation, nonlinear optics, ultra-fast laser system, semiconductor lasers, and nonlinear dynamics, Near-field, linear and nonlinear microscopy techniques (NSOM, Fluorescence,SERS, CARS, SRS), Optical vortices, Thin-film technology, boundary optics.
报告内容简介：
Abrupt modifications of the fields across an interface can be engineered by depositing an array of sub-wavelength resonators specifically tailored to address local amplitude, phase and polarization changes [1]. Physically, ultrathin nanostructure arrays, called ‘‘metasurfaces’’, control light by engineering artificial boundary conditions of Maxwell’s equations. Metasurfaces have been implemented to obtain various sorts of optical functionalities, ranging from the basic control of the transmission and reflection of light, to the control of the radiation patterns for comprehensive wavefront engineering [2]. Here, we review the recent works in this field and explain which physical mechanisms are utilized for the design of efficient planar optical components. We will present our results on free-standing semiconductor metasurfaces and conclude with the concept of conformal boundary optics: an analytical method based on first-principle derivation to engineer transmission and reflection at free-form interfaces [3].
[1] Yu, Genevet,et al., Science 334,333 (2011)
[2] Genevet, et al. Optica 4 (1), 139-152 (2017)
[3] Han, Wong, Molardi & Genevet, PRA 94, 023820 (2016)