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Article
Azimuthal angle- and scanning pitch-dependent colorization of metals by ultrashort laser pulses
We report the modification of optical properties of 304 stainless steel surfaces by femtosecond laser direct writing with different scanning pitches. Regularly arranged ripples with a spatial period of ~700 nm...
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Article
Improved interface quality and luminescence capability of InGaN/GaN quantum wells with Mg pretreatment
Interface modification of high indium content InGaN/GaN quantum wells was carried out by Mg pretreatment of the GaN barrier surface. The indium in the Mg-pretreated InGaN layer was homogeneously distributed, m...
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Article
Evolution process of orderly nanoporous alumina by constant high field anodization in oxalic acid electrolyte
The formation process of porous anodic alumina (PAA) fabricated by direct high field anodization in oxalic acid electrolyte was investigated. The results indicate that the evolution process of high field anodi...