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All-optical, non-volatile, chalcogenide phase-change meta-switch
Conference proceeding   Open access

All-optical, non-volatile, chalcogenide phase-change meta-switch

Behrad Gholipour, Jianfa Zhang, Jonathan Maddock, Kevin F MacDonald, Daniel W Hewak, Nikolay I Zheludev and Daniel W MacDonald
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, pp 1-1
May 2013
url
https://eprints.soton.ac.uk/368803/1/5786.pdfView
Accepted (AM)Open Access (License Unspecified) Open

Abstract

Metamaterials Optical buffering Optical films Optical interferometry Optical reflection Optical refraction Optical variables control
We show experimentally that bistable, optically-induced phase switching in germanium antimony telluride (GST) - a member of the Te-based chalcogenide alloy family upon which all of today's re-writable optical disc and phase-change RAM technologies are based - provides a platform for the engineering of non-volatile metamaterial transmission/reflection modulators (Fig. 1) for near- to mid-infrared wavelengths with thicknesses down to 1/27 of the operating wavelength. These hybrid materials provide a robust and versatile platform for a new generation of optical switching and memory devices.

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