Breakthrough lights up metamaterials

January 16, 2015 by Jay Mwamba, City College of New York
Breakthrough lights up metamaterials

City College of New York led-team has successfully demonstrated how to both enhance light emission and capture light from metamaterials embedded with light emitting nanocrystals. The breakthrough, headed by physicist Dr. Vinod Menon, could lead to a range of applications including ultrafast LEDs, nanoscale lasers and efficient single photon sources.

In the demonstration, the team used having hyperbolic dispersion to enhance the emission properties of the nanocrystals and simultaneously engineered an efficient light extraction scheme.

"The idea of metamaterials in the context of optics is that you can manipulate light and decide how you want it to behave in this medium," said Professor Menon a photonics expert whose specialty includes control of light-matter interaction at the nanoscale.

While enhancement in light emission from such systems was shown by different groups, including Dr. Menon's, in the past, they were not useful since light did not come out easily from them, making their practical application an issue. The present work alleviates this issue and takes the first step towards developing practical light emitters based on metamaterials.

"We've shown both an increase in and were able to extract light." added Professor Menon, whose team included City College PhD students Tal Galfsky and H.N.S. Krishnamoothy

The paper appears in the latest issue of Optica.

Explore further: Study unveils new half-light half-matter quantum particles

Related Stories

Study unveils new half-light half-matter quantum particles

December 29, 2014

Prospects of developing computing and communication technologies based on quantum properties of light and matter may have taken a major step forward thanks to research by City College of New York physicists led by Dr. Vinod ...

Pyramid nanoscale antennas beam light up and down

December 17, 2014

Researchers from FOM Institute AMOLF and Philips Research have designed and fabricated a new type of nanoscale antenna. The new antennas look like pyramids, rather than the more commonly used straight pillars. The pyramid ...

Topological transitions in metamaterials

April 14, 2012

The ability to control the flow of electrons using engineered materials is fundamental to the information technology revolution, yet many properties of matter are still unclear. Now a University of Alberta researcher is closer ...

Recommended for you

Study: Pulsating dissolution found in crystals

January 17, 2018

When German researchers examined time-lapse images of dissolving crystals at the nanoscale, they found a surprise: Dissolution happened in pulses, marked by waves that spread just like ripples on a pond.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.