Efficient color routing with a dispersion-controlled waveguide array

作     者：Yi-Kun Liu Si-Cong Wang Yong-Yao Li Li-Yan Song Xiang-Sheng Xie Ming-Neng Feng Zhi-Ming Xiao Shao-Zhi Deng Jian-Ying Zhou Jun-Tao Li Kam Sing Wong Thomas F Krauss 

作者机构：State Key Laboratory of Optoelectronic Materials and TechnologiesSun Yat-sen UniversityGuangzhou 510275China Department of PhysicsHong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina SUPASchool of Physics and AstronomyUniversity of St AndrewsSt AndrewsFifeKY169SSUK 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2013年第2卷第1期

页      面：220-225页

核心收录：

学科分类：0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：This work is supported by The National Key Basic Research Special Foundation(G2010CB923204) Chinese Nation Natural Science Foundation(10934011,11104083) Research Grants Council of Hong Kong(HKUST2/CRF/11G) 

主　　题：color filters dispersion propagation route waveguides 

摘      要：Splitting white light into its constituent spectral components has been of interest ever since Newton first discovered the phenomenon of color *** devices have since been conceived to achieve efficient wavelength separation,yet a large number of applications,e.g.,in display technology,still use simple color absorption or rejection filters that absorb or reflect unwanted wavelengths,thus wasting luminous ***,we demonstrate a novel microsized device concept that enables efficient color *** device operation is based on differential material dispersion in a waveguide array,which causes different wavelength signals to couple selectively into appropriate waveguides.A theoretical power delivery of greater than 50%for a tricolor wavelength router is obtained,compared to 33%expected from geometry *** principle of operation is demonstrated experimentally for a dual-color light field,where we achieve a higher than 70%routing efficiency(compared to 50%from geometry),thus highlighting the feasibility of this novel and promising approach.