Microstructured light guides overcoming the two-dimensional concentration limit

被引:12
作者
Leutz, R [1 ]
Ries, H [1 ]
机构
[1] Univ Marburg, Dept Phys, D-35037 Marburg, Germany
关键词
D O I
10.1364/AO.44.006885
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Light guides are employed to homogenize an illumination distribution, to translate cross-sectional beam shapes, and to provide concentration. Microstructures enhance the performance of light guides based on the selective mixing of direction vector components in the two-dimensional phase space (etendue) that is perpendicular to the system's optical axis. For linear concentrators we find that the microstructured light guide beats the two-dimensional concentration limit and roughly allows for a three-dimensional concentration ratio. This result is verified in simulation and experiment. (c) 2005 Optical Society of America
引用
收藏
页码:6885 / 6889
页数:5
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