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Leaky-wave metasurfaces connect waveguides to free-space optics – Physics World

Leaky-wave metasurfaces connect waveguides to free-space optics – Physics World
physicsworld.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from physicsworld.com Daily Mail and Mail on Sunday newspapers.

New yorkUnited statesColumbia universityAdam overvigNanfang yuHeqing huangCity university of new yorkColumbia engineeringCity university

Leaky-wave metasurfaces: A perfect interface between free-space and integrated optical systems

Leaky-wave metasurfaces: A perfect interface between free-space and integrated optical systems
sciencedaily.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencedaily.com Daily Mail and Mail on Sunday newspapers.

New yorkUnited statesNanfang yuHeqing huangScience research center nanofabrication facilityColumbia nano initiativeCity university of new yorkGraduate centerCity university

Leaky-wave metasurfaces: A perfect interface

Columbia Engineering researchers have developed a new class of integrated photonic devices “leaky-wave metasurfaces” that convert light initially confined in an optical waveguide to an arbitrary optical pattern in free space. These are the first to demonstrate simultaneous control of all four optical degrees of freedom, setting a world record. Because they’re so thin, transparent, and compatible with photonic integrated circuits, they can be used to improve optical displays, LIDAR, optical communications, and quantum optics.

New yorkUnited statesColumbia universityCheng chia tsaiAdamc overvigStephaniec malekHeqing huangAndrea alNanfang yuNational science foundationScience research center nanofabrication facilityScience research centerPhotonics initiativeResearch fellowship programSimons foundationDepartment of applied physics

Research Bits: March 22

Research Bits: March 22
semiengineering.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from semiengineering.com Daily Mail and Mail on Sunday newspapers.

United statesMichal lipsonNanfang yuKaushik senguptaHeqing huangMarko lonHarvard universityShanghai jiao tong university joint institutePrinceton universityResearchers at columbia universityXian jiaotong universityUniversity of michiganXi an jiaotong universityColumbia university

New Device Modulates Visible Light—Without Dimming It—With The Smallest Footprint And Lowest Power Consumption

Over the past several decades, researchers have moved from using electric currents to manipulating light waves in the near-infrared range for.

New yorkUnited statesMichal lipsonNanfang yuHeqing huangCity university of new yorkTechnology facilityColumbia nano initiativeScience research center nanofabrication facilityColumbia engineeringEugene higgins professorElectrical engineeringGraduate centerCity universityCornell nanoscale science