Group designs new nanoscale holographic interface
In our recent paper, we report the discovery of a new type of holographic interface, which after being designed for a given wavelength, is able …
View ArticleUnusual thermal emissivity of vanadium oxide structure
Members of the group have discovered some unusual thermal emissivity properties of a vanadium oxide/sapphire structure which may have application in thermal camouflage, thermal tagging …
View ArticleCoupling to flatland
What happens when three-dimensional matter interacts with two-dimensional light? The answers are not quite intuitive – and offer some fascinating new perspectives for the development …
View ArticleGroup publishes proposal for emissive renewable energy harvesters
Energy can be harvested any time heat flows spontaneously from a hotter to a cooler body. Solar cells, for example, avail of the large …
View ArticleWork on Ultrathin Color Coatings Profiled by SEAS
Former graduate student and post-doc Mikhail Kat’s work on nanometer-thin metallic optical coatings done in the CNS facility at Harvard has been profiled by Harvard …
View ArticleSurface plasmon analogue to Cherenkov radiation subject of Nature...
Researchers in the group have created a 2-dimensional, surface plasmon analogue of Cherenkov radiation. By exciting a row of slits in a metal film …
View ArticleExotic chirality-sorting optical force proposed
Transverse spin momentum of an evanescent field (such as one generated by a totally internally reflecting beam of light) can be converted to linear momentum …
View ArticleBroadband chiral metasurface holograms
By revisiting a historical method of holography and combining it with metasurfaces, Khorasaninejad, Ambrosio, and colleagues in our group have demonstrated broadband chiral meta-holograms with …
View ArticleMeasuring light forces in the sub-femtonewton regime
One femtonewton is the force a dust particle about the size of a human cell would feel, illuminated by a ray of sunlight. It is …
View ArticleFlat Lens for Visible Wavelengths
Despite tremendous interest in planar lenses in the visible spectrum, there has been no solution that simultaneously satisfies the demands for high numerical aperture (NA) …
View Article
More Pages to Explore .....