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Ben-Gurion U. researchers camouflage an optical chip rendering it invisible

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BEER-SHEVA, Israel, November 13, 2017 – Ben-Gurion University of the Negev (BGU) researchers have achieved a breakthrough in manipulating light to render an object, such as an optical chip, invisible.

According to the recent study published in Nature Scientific Reports, the researchers conceived a new method that deflects and scatters light away from a "cloaking" chip surface so it is not detected.

An operational cloaking chip can be an extension of the basic technologies such as radar-absorbing dark paint used on stealth aircraft, local optical camouflage, surface cooling to minimize electromagnetic infrared emissions, or electromagnetic wave scattering.

"These results open the door to new integrated photonic devices, harnessing electromagnetic fields of light at nanoscale for a variety of applications from on-chip optical devices to all-optical processing," says Dr. Alina Karabchevsky, head of BGU's Light-on-a-Chip Group and a member of the BGU Unit of Electro-Optical Engineering and the Ilse Katz Institute for Nanoscale Science and Technology. "We showed that it is possible to bend the light around an object located on the cloak on an optical chip. The light does not interact with the object, thus resulting in the object's invisibility."

The next step is for researchers to overcome the significant challenge of developing a prototype.

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Other group researchers who contributed to the study, Invisibility Cloaking Scheme by Evanescent Fields Distortion on Composite Plasmonic Waveguides with Si Nano-Spacer, include Yakov Galutin, an MSc student and a member of the BGU Electro-Optical Engineering Unit and the Ilse Katz Institute for Nanoscale Science and Technology, and Eran Falek, a student in the Department of Electrical and Computer Engineering.

About American Associates, Ben-Gurion University of the Negev

American Associates, Ben-Gurion University of the Negev (AABGU) plays a vital role in sustaining David Ben-Gurion's vision: creating a world-class institution of education and research in the Israeli desert, nurturing the Negev community and sharing the University's expertise locally and around the globe. As Ben-Gurion University of the Negev (BGU) looks ahead to turning 50 in 2020, AABGU imagines a future that goes beyond the walls of academia. It is a future where BGU invents a new world and inspires a vision for a stronger Israel and its next generation of leaders. Together with supporters, AABGU will help the University foster excellence in teaching, research and outreach to the communities of the Negev for the next 50 years and beyond. Visit vision.aabgu.org to learn more.

AABGU, which is headquartered in Manhattan, has nine regional offices throughout the United States. For more information, visit http://www.aabgu.org.

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http://dx.doi.org/10.1038/s41598-017-10578-6

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