Patent · US Active

Spin-to-orbital angular momentum converter for light

US12352921B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

President and Fellows of Harvard College · US

Inventors

Federico Capasso · Westfield, US
Antonio AMBROSIO · Arlington, US
Noah A. RUBIN · Cambridge, US
Robert C. Devlin · Concord, US
Yao-Wei HUANG · Cambridge, US

Key dates

Filing date	Sep 14, 2018
Grant date	Jul 8, 2025
Priority date	—
Expiry date	Mar 2, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB82Y20/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical device comprises a metasurface including a plurality of nanostructures. The nanostructures convert an input light of an arbitrary spin state into an output light of an arbitrary total angular momentum state characterized by a superposition of two independent orbital angular momentum (OAM) states.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.