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Proceedings Paper

Nanothermochromic diffraction gratings with giant switching contrast based on the metal-insulator transition of vanadium dioxide
Author(s): Johannes Zimmer; Simon A. Haug; Achim Wixforth; Helmut Karl; Hubert J. Krenner
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Paper Abstract

Nanothermochromic diffraction gratings based on the metal-insulator transition of VO2 are fabricated by site- selective ion-beam implantation in a SiO2 matrix. The studied diffraction gratings were defined (i) directly by spatially selective ion-beam synthesis or (ii) by site-selective deactivation of the metal-insulator transition by ion-beam induced structural defects. The strongest increase of the diffraction efficient was observed at a wavelength of 1550 nm exceeding one order of magnitude for the selectively deactivated gratings. The observed pronounced thermal hysteresis extends down close to room temperature and makes these optical elements well suited for optical memory devices.

Paper Details

Date Published: 18 March 2013
PDF: 8 pages
Proc. SPIE 8626, Oxide-based Materials and Devices IV, 862614 (18 March 2013); doi: 10.1117/12.2001809
Show Author Affiliations
Johannes Zimmer, Univ. Augsburg (Germany)
Simon A. Haug, Univ. Augsburg (Germany)
Achim Wixforth, Univ. Augsburg (Germany)
Helmut Karl, Univ. Augsburg (Germany)
Hubert J. Krenner, Univ. Augsburg (Germany)

Published in SPIE Proceedings Vol. 8626:
Oxide-based Materials and Devices IV
Ferechteh Hosseini Teherani; David C. Look; David J. Rogers, Editor(s)

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