Journal
NANOSCALE RESEARCH LETTERS
Volume 7, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1186/1556-276X-7-416
Keywords
Proton beam writing; Defect density; Photonic band structure
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A method for fabrication of three-dimensional (3D) silicon nanostructures based on selective formation of porous silicon using ion beam irradiation of bulk p-type silicon followed by electrochemical etching is shown. It opens a route towards the fabrication of two-dimensional (2D) and 3D silicon-based photonic crystals with high flexibility and industrial compatibility. In this work, we present the fabrication of 2D photonic lattice and photonic slab structures and propose a process for the fabrication of 3D woodpile photonic crystals based on this approach. Simulated results of photonic band structures for the fabricated 2D photonic crystals show the presence of TE or TM gap in mid-infrared range.
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