#  Our work on waveguide-top phase-gradient metasurface appears on Nature Nanotechnology! 

 





April 19, 2017

 

 

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This work is in collaboration with Prof. Nanfang Yu's group at Columbia University. See details at: [http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2017.50.ht…](http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2017.50.html)



 

 

 



 

 

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