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Jones matrix holography

Metasurfaces control polarized light at-will

August 16, 2021

In recent years, considerable attention has been paid to the ability of metasurface optics to manipulate polarized light. A variety of works and applications have been demonstrated showing, for instance, how metasurfaces can create optics with different behaviors that switch on the basis of light's polarization state, or that produce polarized holograms.

In recent work published in Science Advances, we show that a new perspective - which we dub "Jones matrix holography" - generalizes much of this past work and suggests new possibilties as well that exceed the level of...

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One metasurface to rule them all

One metasurface to rule them all

July 12, 2021

It typically takes several independently-controlled components to fully manipulate the various degrees of freedom (e.g. wavelength, shape, and power) of a laser beam. In this publication, we show that a single reflective metasurface and a laser diode can exert full control of the shape and intensity of diffraction orders. The design does not require any rotating components and is compact. The research has applications in quantum sensing and virtual reality/augmented reality (VR/AR) headsets. 

Check out the publication in...

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heart shaped phase singularity

Harnessing the dark side with optical singularities

July 12, 2021

Do black holes come to mind when you think about singularities? In optics, singularities occur when one or more parameters are undefined, and are also associated with non-intuitive phenomena such as energy backflow and superoscillations. While the vast majority of optical singularities take the form of string-like lines and loops, this paper introduces a technique to engineer singularities belonging to a wider class of shapes. As a demonstration, the authors engineer sheet singularities that have heart-shaped cross-sections, then realize these light fields experimentally using...

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metalens

Metalenz reveals plans for revolutionizing consumer electronics with flat optics

February 7, 2021

Metalenz, Inc., a startup spun-off from the Capasso group, has revealed its plans for revolutionizing consumer electronics by large-scale fabrication of flat optics to replace conventional lenses. Metalenz has received $10 million in investment from various venture capital funds including 3M Ventures and Intel Capital. 

Metalenses are ultrathin nanostructures that allow one to sculpt the properties of light at the nanoscale. The Capasso group pioneered flat optics...

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capasso

Professor Capasso awarded the 2021 Frederic Ives Medal and Jarus W. Quinn Prize

February 7, 2021

We are delighted to announce that Professor Capasso has been awarded the 2021 Frederic Ives Medal and Jarus W. Quinn Prize from the Optical Society of America (OSA). This award recognizes overall distinction in optics and is the highest award of the society. This year, this award was given to Professor Capasso for his work on optical physics, quantum electronics and nanophotonics. 

Congratulations from all of us at the Capasso group! 

Read the OSA article...

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