Journal abstract: http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2015.115.html http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano... Fu

Journal abstract: http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2015.115.html http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano... Full paper paywalled.