Invention Grant
- Patent Title: Light-emitting diode with hyperbolic metamaterial
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Application No.: US17891930Application Date: 2022-08-19
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Publication No.: US11777054B1Publication Date: 2023-10-03
- Inventor: Erik Shipton , Tanya Malhotra
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Pequignot + Myers
- Agent Matthew A. Pequignot
- Main IPC: H01L33/06
- IPC: H01L33/06 ; H01L33/00 ; H01L27/15

Abstract:
A light-emitting diode includes a first semiconductor region of one of p- or n-conductivity types, a second semiconductor region of the other one of p- or n-conductivity types, forming a p-n junction with the first semiconductor region, and a quantum well layer at the p-n junction between the first and second semiconductor regions. A hyperbolic metamaterial structure is provided in the second semiconductor region. The hyperbolic metamaterial structure is coupled to the quantum well layer for extracting light from the quantum well layer. The hyperbolic metamaterial structure may be patterned to provide an array of nanoantennas to apodize the emitted beam, and to control the polarization state of the emitted beam.
Information query
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