Efficient terahertz sources based on difference-frequency generation in triply-resonant photonic resonators

US8285091B2 · kind B2 · utility

Assignees

• Massachusetts Institute of Technology · US
• President and Fellows of Harvard College · US

Inventors

• Jorge Bravo-Abad · Cambridge, US
• Ian BURGESS · Toronto, CA
• John D. Joannopoulos · Belmont, US
• Steven G. Johnson · McLeansboro, US
• Marko Loncar · Somerville, US
• Murray W. McCutcheon · Brookline, US
• Alejandro Rodriguez · Princeton, US
• Marin Soljacic · Belmont, US
• Yinan Zhang · Huazhou, CN

Key dates

• Filing date: Jul 12, 2010
• Grant date: Oct 9, 2012
• Expiry date: Mar 4, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q15/0033
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A system for efficient generation of THz radiation is provided that includes a triply-resonant nonlinear photonic resonator coupled to at least one near-infrared (NIR) or optical waveguide and to at least one THz waveguide. The energy traveling through the at least one near-infrared (NIR) or optical waveguide is converted to THz radiation inside the triply-resonant photonic resonator via a nonlinear difference frequency generation (DFG) process.