We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAn omnidirectional retroreflector based on the transmutation of dielectric singularities.AuthorsMa YG; Ong CK; Tyc T; Leonhardt UPublicationNature materials, 2009, Vol 8, Issue 8, p639ISSN1476-4660Publication typearticleDOI10.1038/nmat2489