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Fabrication of Two-Dimensional Photonic Crystals in AlGaInP/GaInP Membranes by Inductively Coupled Plasma Etching

Author(s)
Chen, A.; Chua, Soo-Jin; Wang, B.; Fitzgerald, Eugene A.
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Abstract
The fabrication process of two-dimensional photonic crystals in an AlGaInP/GaInP multi-quantum-well membrane structure is developed. The process includes high resolution electron-beam lithography, pattern transfer into SiO₂ etch mask by reactive ion etching, pattern transfer through AlGaInP/GaInP layer by inductively coupled plasma (ICP) etching and a selective undercut wet etch to create the freestanding membrane. The chlorine-based ICP etching conditions are optimized to achieve a vertical sidewall. The photonic crystal structures with periods of a=160-480nm are produced.
Date issued
2006-01
URI
http://hdl.handle.net/1721.1/29821
Series/Report no.
Advanced Materials for Micro- and Nano-Systems (AMMNS)
Keywords
photonic crystals, ICP etching

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