Fabrication of binary Fresnel lenses in PMMA by femtosecond laser micromachining

被引：0
|
作者：
Vazquez, R. Martinez [1 ]
Eaton, S. M. [1 ]
Ramponi, R. [1 ]
Cerullo, G. [1 ]
Osellame, R. [1 ]
机构：
[1] Politecn Milan, Ist Foton & Nanotecnol CNR, Dipartimento Fis, I-20133 Milan, Italy
来源：
2011 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) | 2011年
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D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Binary Fresnel lenses are fabricated by ablation of PMMA substrates with a femtosecond laser. The minimum feature size in our experimental conditions is 600 nm. Lenses with good transparency and focal lengths in the range from 500 mu m to 5mm are obtained, with a maximum efficiency close to the theoretical one.
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页数：2
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