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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

Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings

It turns out that butterflies are just as striking in thermal as they are in the visible light spectrum. According to a study published in Nature by researchers from Columbia Engineering and Harvard University, it's possible to examine the thermodynamic properties of butterfly wings and the importance of radiative cooling in keeping these delicate structures fluttering.

Nanfang yuCheng chia tsaiSkyla bailyHarvard universityMuseum of comparative zoology at harvardColumbia engineeringHessel professorComparative zoology

The Engineer - Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings (1)

The Engineer - Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings (1)
theengineer.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theengineer.co.uk Daily Mail and Mail on Sunday newspapers.

Nanfang yuCheng chia tsaiHarvard universityMuseum of comparative zoology at harvardColumbia engineeringHessel professorComparative zoology

The Engineer - Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings

The Engineer - Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings
theengineer.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theengineer.co.uk Daily Mail and Mail on Sunday newspapers.

Nanfang yuCheng chia tsaiHarvard universityMuseum of comparative zoology at harvardColumbia engineeringHessel professorComparative zoology

Process and Control Today | Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings

Process and Control Today | Thermal Imaging Lets Researchers See Beyond the Surface of Butterfly Wings
pandct.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from pandct.com Daily Mail and Mail on Sunday newspapers.

Nanfang yuCheng chia tsaiSystems ltdHarvard universityMuseum of comparative zoology at harvardThermal imaging lets researchers see beyondColumbia engineeringHessel professorComparative zoology