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  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper CK_10_4

Tunable complete optical absorption in multilayer structures including Ge2Sb2Te5 without lithographic patterns

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Abstract

Phase-change materials (PCMs) are a group of chemical compounds that have two stable phases with very large contrast in their optical and electrical properties. Moreover, phase transitions in PCMs can be triggered by applying an appropriate thermal cycle, which can be supplied by electrical or optical pulses. These unique properties make them interesting for new applications in photonics. In this talk we will show how the PCM Ge2Sb2Te5 (GST) [1] can be used in thin film layered structures to achieve very high absorption in the device, which is also tunable.

© 2017 IEEE

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