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摘要:
Based on the application of etching of GaAs-based photonic crystals to photonic crystals vertical cavity surface emitting laser, the characteristics of photoresist and SiO2 masks were studied and their impact on the effect of ICP etched on GaAs-based two-dimensional photonic crystals was explored. Reasons for accidented flat, bad vertical degree and coarse sidewall were analyzed when small size photonic crystals were etched. Finally, by modification of the fabrication conditions, high quality photonic crystals with smooth and vertical sidewall and flat bottom were achieved with BP212-7CP photoresist as mask. The diameter of the photonic crystals is 1.2-4.0 μm and the depth of photonic crystals is 1.5 μm.
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来源 :
Nanotechnology and Precision Engineering
ISSN: 1672-6030
年份: 2011
期: 3
卷: 9
页码: 279-282
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