Integrated impedance-matched photonic zero-index metamaterials

US10254478B2 · kind B2 · utility

Assignee

• President and Fellows of Harvard College · US

Inventors

• Eric Mazur · Concord, US
• Yang Li · Santa Clara, US
• Orad Reshef · Cambridge, US
• Marko Loncar · Somerville, US
• Shota Kita · Cambridge, US
• Philip Alejandro Munoz · Cambridge, US
• Daryl I. Vulis · San Francisco, US

Key dates

• Filing date: Jul 29, 2016
• Grant date: Apr 9, 2019
• Expiry date: Jul 29, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/183
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

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.