Fabrication of photonic band-gap crystals
Fabrication of photonic band-gap crystals
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DOI:
10.1116/1.588051
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发表时间:
1995-11-01
影响因子:
1.4
通讯作者:
Scherer, A
中科院分区:
文献类型:
--
作者:
Cheng, CC;Scherer, A
We describe the fabrication of three-dimensional photonic crystals using a reproducible and reliable procedure consisting of electron beam lithography followed by a sequence of dry etching steps. Careful fabrication has enabled us to define photonic crystals with 280 nm holes defined with 359 nm center to center spacings in GaAsP and GaAs epilayers. We construct these photonic crystals by transferring a submicron pattern of holes from 70-nm-thick polymethylmethacrylate resist layers into 300-nm-thick silicon dioxide ion etch masks, and then anisotropically angle etching the III-V semiconductor material using this mask. Here, we show the procedure used to generate photonic crystals with up to four lattice periods depth. (C) 1995 American Vacuum Society.