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dc.contributor.authorLiu, Yi-Kun
dc.contributor.authorWang, Si-Cong
dc.contributor.authorLi, Yong-Yao
dc.contributor.authorSong, Li-Yan
dc.contributor.authorXie, Xiang-Sheng
dc.contributor.authorFeng, Ming-Neng
dc.contributor.authorXiao, Zhi-Ming
dc.contributor.authorDeng, Shao-Zhi
dc.contributor.authorZhou, Jian-Ying
dc.contributor.authorLi, Jun-Tao
dc.contributor.authorWong, Kam Sing
dc.contributor.authorKrauss, Thomas F.
dc.date.accessioned2014-01-08T12:01:01Z
dc.date.available2014-01-08T12:01:01Z
dc.date.issued2013-02
dc.identifier89120724
dc.identifier18aff0e2-0e8b-4ba4-9790-4d1a330c412b
dc.identifier000324466600001
dc.identifier84877846779
dc.identifier.citationLiu , Y-K , Wang , S-C , Li , Y-Y , Song , L-Y , Xie , X-S , Feng , M-N , Xiao , Z-M , Deng , S-Z , Zhou , J-Y , Li , J-T , Wong , K S & Krauss , T F 2013 , ' Efficient colour routing with a dispersion-controlled waveguide array ' , Light: Science & Applications , vol. 2 , 52 . https://doi.org/10.1038/lsa.2013.8en
dc.identifier.issn2047-7538
dc.identifier.urihttps://hdl.handle.net/10023/4318
dc.description.abstractSplitting white light into its constituent spectral components has been of interest ever since Newton first discovered the phenomenon of color separation. Many 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 energy. Here, we demonstrate a novel microsized device concept that enables efficient color routing. The 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 alone. The 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.
dc.format.extent6
dc.format.extent2046190
dc.language.isoeng
dc.relation.ispartofLight: Science & Applicationsen
dc.subjectColour filtersen
dc.subjectDispersionen
dc.subjectPropagationen
dc.subjectRouteen
dc.subjectWaveguidesen
dc.titleEfficient colour routing with a dispersion-controlled waveguide arrayen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.1038/lsa.2013.8
dc.description.statusPeer revieweden


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