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[期刊论文] 作者：QiaofengTan,李浏,
来源：云光技术 年份：2005
许多大功率激光系统，需要顶平，边陡，旁瓣小和光效率高的均匀焦斑。用衍射光学元件(DOE)实现这样的均匀照明有许多优点，例如纯相位调制光效率高，相位设计灵活性大等等。相位设计，采......
Tunable directional beaming assisted by asymmetrical SPP excitation in a subwavelength metallic doub
[期刊论文] 作者：XiaoweiLi,QiaofengTan,BenfengBai,GuofanJin,
来源：ChineseOpticsLetters 年份：2012
We present a design for tunable directional beaming through a subwavelength metallic double slit surrounded by dielectric surface-relief gratings. On-axis and off-axis beaming can be switched by controlling the incident angle to asymmetrica......
[期刊论文] 作者：ShuzhenNie,JinYu,GangYu,QiaofengTan,ZhongweiFan,
来源：ChineseOpticsLetters 年份：2013
A method to shape the incident laser beam into a concentric multi-ring pattern with different intensity distribution is presented based on geometrical transform method and energy conservation. The output two and three rings are designed as ......
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