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<p class="MsoNormal" align="center" style="text-align:center"><b><i><span style="font-size:18.0pt;font-family:"Lucida Sans","sans-serif";font-variant:small-caps;color:#339966;letter-spacing:7.0pt">Micro-nano Seminars
<o:p></o:p></span></i></b></p>
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<p class="MsoNormal"><b><i><span style="font-size:13.0pt;font-family:"Lucida Sans","sans-serif";color:#339966;letter-spacing:.5pt">Thursday, December 5, 2013</span></i></b><span style="font-size:11.0pt;color:#339966"><o:p></o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-size:13.0pt;font-family:"Lucida Sans","sans-serif";color:#339966;letter-spacing:.5pt">12:00 pm – Room 33-418<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Cambria","serif";color:#339966"> </span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Cambria","serif"">Professor Shuang Zhang<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Cambria","serif"">School of Physics & Astronomy<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Cambria","serif"">University of Birmingham, UK<o:p></o:p></span></b></p>
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<b><span style="font-family:"Cambria","serif""> </span></b></p>
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<b><span style="font-family:"Cambria","serif""> </span></b></p>
<p class="MsoNormal" align="center" style="text-align:center;text-autospace:none">
<b><span style="font-family:"Cambria","serif"">Wavefront engineering using Plasmonic Metasurfaces
<o:p></o:p></span></b></p>
<p class="MsoNormal" align="center" style="text-align:center;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Cambria","serif""> </span></p>
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<p class="MsoNormal" style="text-align:justify;text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Cambria","serif"">Abstract<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:none"><span style="font-size:10.0pt;font-family:"Cambria","serif"">Benefitting from the flexibility in engineering their optical responses, metamaterials have been used to achieve control over the
propagation of light to an unprecedented level, leading to highly unconventional and versatile optical functionalities in comparison to their natural counterparts. Recently the emerging field of meta-surfaces consisting of a monolayer of artificial atoms has
offered attractive functionalities of shaping the wave front of light by introducing an interfacial abrupt phase discontinuity. In this talk, I will talk about our recent works on optical metasurfaces consisting of an array of plasmonic rods with spatially
varying orientations, where the local phase profile is determined by the orientation of each rod. In particular, I will focus on three examples of device applications: a dual polarity metalens that can functions either a convex or a concave lens, helicity
switchable unidirectional excitation of surface plasmon polaritons, and 3D computer generated hologram.</span><span style="font-size:10.0pt;font-family:"Cambria","serif";mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:none"><span style="font-size:10.0pt;font-family:"Cambria","serif""> </span></p>
<p style="margin:0in;margin-bottom:.0001pt;text-align:justify"><b><span style="font-size:10.0pt;font-family:"Cambria","serif"">Biography<o:p></o:p></span></b></p>
<p style="margin:0in;margin-bottom:.0001pt;text-align:justify"><span style="font-size:10.0pt;font-family:"Cambria","serif"">Shuang Zhang is a professor in the school of Physics & Astronomy, University of Birmingham, UK. He received BS in Physics from Jilin
University, MS in Physics from Northeastern University, and Ph.D in Electrical Engineering from the University of New Mexico.<b><o:p></o:p></b></span></p>
<p style="text-align:justify"><span style="font-size:10.0pt;font-family:"Cambria","serif"">From 2005 to 2006, he was a Postdoctoral Research Fellow at the University of Illinois at Urbana-Champaign, and from 2006 to 2010, he was first a Postdoctoral Research
Fellow and later an Assistant Research Engineer at the University of California Berkeley. In March 2010, he took the position of Reader in the School of Physics & Astronomy, University of Birmingham, and was promoted to professor in 2013.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-size:10.0pt;font-family:"Cambria","serif"">Professor Zhang is the recipient of IUPAP (International Union of Pure and Applied Physics) Young Scientist Prize in Optics, 2010 for his research on
optical metamaterials. He serves as an editor of <Light:Science & Application> - a new journal launched by Nature and Changchun Institute of Optics and Fine Mechanics.<o:p></o:p></span></p>
<p class="MsoNormal"> <span style="mso-fareast-language:EN-US"><img width="117" height="163" id="Picture_x0020_1" apple-width="yes" apple-height="yes" src="cid:image006.png@01CEEF4E.7CE31EF0"></span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Cambria","serif"">For additional information about this and other upcoming seminars, please visit
<a href="http://drl.mit.edu/micro_nano_seminar_series.html">http://drl.mit.edu/micro_nano_seminar_series.html</a><o:p></o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:9.0pt;font-family:"Cambria","serif"">Light refreshments will be served. For more information, please contact Theresa Werth at
<a href="mailto:theresaw@mit.edu">theresaw@mit.edu</a>.</span></i><span style="font-size:9.0pt;font-family:"Cambria","serif""><o:p></o:p></span></p>
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