Wednesday, September 28, 2016 - 4:00pm to 5:00pm  ·  Material Science Seminar
Christine A. Caputo, UNH Chemistry Department
Wednesday, September 21, 2016 - 4:00pm to 5:00pm  ·  Material Science Seminar
Michael Moebius, Harvard University

Abstract: Generation of entangled photons in nonlinear media constitutes a basic building block of modern photonic quantum technology. Current optical materials are severely limited in their ability to produce three or more entangled photons in a single event due to weak nonlinearities and challenges in achieving phase-matching. Photon losses in materials and devices further limit performance. We are developing integrated nanoscale TiO2 waveguides to enable efficient generation of entangled photon triplets using third-order spontaneous parametric down-conversion.

Friday, July 1, 2016 - 3:00pm to 4:00pm  ·  Material Science Seminar
Nihar Pradhan, National High Magnetic Field Laboratory
Abstract: Two-dimensional layered materials such as graphene, h-BN and transition metal dichalcogenides, by the virtue of their unique properties provide immense opportunities not only to explore fundamental physics but also to solve critical technological problems. Transition metal dichalcogenides (TMDs), such as MoS2, WSe2, MoSe2 and many others belong to this class of materials, which we are exploring.