发明名称 |
PHOTONIC CRYSTAL OMNIDIRECTIONAL REFLECTOR |
摘要 |
A reflector, a method of producing same and a method of creating high omnidirectional reflection for a predetermined range of frequencies of incident electromagnetic energy for any angle of incidence and any polarization. The reflector includes a structure with a surface and a refractive index variation along the direction perpendicular to the surface while remaining nearly uniform along the surface. The structure is configured such that i) a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along the perpendicular direction of said surface, ii) a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along a direction approximately 90 DEG from the perpendicular direction of said surface, and iii) a range of frequencies exists which is common to both of said photonic band gaps. In an exemplary embodiment, the reflector is configured as a photonic crystal. |
申请公布号 |
EP1057072(A1) |
申请公布日期 |
2000.12.06 |
申请号 |
EP19990909516 |
申请日期 |
1999.02.19 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
JOANNOPOULOS, JOHN, D.;FAN, SHANHUI;WINN, JOSHUA, N.;FINK, YOEL |
分类号 |
G02B5/08;G02B5/28;G02B5/30;G02B6/12;G02B6/122;(IPC1-7):G02F1/01 |
主分类号 |
G02B5/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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