Harvard College

Orad Reshef

Eric Mazur

Michael G Moebius

Christopher Courtney Evans

Sarah E Griesse-Nascimento

Marko Loncar

Yang Li

Shota Kita

Philip Alejandro Munoz

Daryl Vulis

In one aspect, a composition of matter is disclosed, which comprises a photonic crystal comprising a plurality of 2D or 3D periodically repeating structures, where the structures are configured and arranged relative to one another such that the photonic crystal exhibits a Dirac cone at the center of the Brillouin zone of its reciprocal lattice, e.g., at one frequency in the optical regime. In some embodiments, the structures are formed of a dielectric material. In another aspect, a photonic structure is disclosed, which comprises a substrate, a plurality of periodically repeating cavities formed in said substrate, where the cavities are sized and arranged relative to one another such that said photonic structure exhibits a substantially vanishing refractive index (preferably a zero refractive index) for at least one wavelength of electromagnetic radiation propagating through said photonic structure, for example, for at least one wavelength of the electromagnetic radiation in a range of about 400 nm to about 100 microns.

Integrated impedance-matched photonic zero-index metamaterials

In one aspect, a device for generating triplet photons is disclosed, which includes a waveguide extending from a proximal end for receiving pump radiation to a distal end through which triplet photons generated via nonlinear interaction of the pump radiation with the waveguide exit the waveguide, where the waveguide is configured such that the triplet photons generated within the waveguide reach its distal end at a rate in a range of about 0.05 triplet photons/second/mW and 0.3 triplet photons/second/mW, e.g., in a range of about 0.1 triplet photons/second/mW to about 0.2 triplet photons/second/mW.

Direct entangled triplet-photon sources and methods for their design and fabrication

The present teachings are generally directed to devices and methods for triplet photons generations, and in particular to on-chip integrated sources for generating direct triplet entangled photons.

Growing community of inventors

Cambridge, MA, United States of America

Orad Reshef