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An array of Al nanowires was deployed over a through hole formed by sacrificial silicon etching. The period of the Al nanowire arrays is the dominant structural parameter in determining the transmission peak position of SPs for a given material configuration. The Al nanowire arrays are designed with the same Al wire width under the assumption of operation using a microelectromechanical systems (MEMS) comb\u2010drive actuator for the realisation of an RGB tunable colour filter. The peak wavelength of the transmitted light was red\u2010shifted by increasing the period of the Al nanowire arrays from 450 to 600\u00a0nm, and RGB colours were demonstrated. A black pixel was produced using the 400\u00a0nm pitch Al nanowire array. The maximum measured transmittance of the peak wavelength was 56%. In addition, the number of nanowires sufficient for low\u2010power operation by a MEMS comb\u2010drive actuator was investigated and sufficient transmission light intensity was obtained from the pixel size of 10 \u00b5m\n                    <jats:sup>2<\/jats:sup>\n                    , including 20 Al nanowires.\n                  <\/jats:p>","DOI":"10.1049\/mnl.2014.0423","type":"journal-article","created":{"date-parts":[[2014,12,28]],"date-time":"2014-12-28T01:07:30Z","timestamp":1419728850000},"page":"891-895","source":"Crossref","is-referenced-by-count":13,"title":["Free\u2010standing aluminium nanowire arrays for high\u2010transmission plasmonic colour filters"],"prefix":"10.1049","volume":"9","author":[{"given":"Hiroaki","family":"Honma","sequence":"first","affiliation":[{"name":"Department of Electrical and Electronic Information Engineering Toyohashi University of Technology 1\u20101 Hibarigaoka, Tempakucho Toyohashi Aichi 441\u20108580 Japan"}]},{"given":"Kazuhiro","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Information Engineering Toyohashi University of Technology 1\u20101 Hibarigaoka, Tempakucho Toyohashi Aichi 441\u20108580 Japan"}]},{"given":"Masashi","family":"Fukuhara","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Information Engineering Toyohashi University of Technology 1\u20101 Hibarigaoka, Tempakucho Toyohashi Aichi 441\u20108580 Japan"},{"name":"Japan Society for the Promotion of Science 8 Ichiban\u2010cho Chiyoda Tokyo 102\u20108472 Japan"}]},{"given":"Makoto","family":"Ishida","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Information Engineering Toyohashi University of Technology 1\u20101 Hibarigaoka, Tempakucho Toyohashi Aichi 441\u20108580 Japan"},{"name":"Electronics Inspired\u2010Interdisciplinary Research Institute (EIIRIS) Toyohashi University of Technology Japan"}]},{"given":"Kazuaki","family":"Sawada","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Information Engineering Toyohashi University of Technology 1\u20101 Hibarigaoka, Tempakucho Toyohashi Aichi 441\u20108580 Japan"},{"name":"Electronics Inspired\u2010Interdisciplinary Research Institute (EIIRIS) Toyohashi University of Technology Japan"}]}],"member":"265","published-online":{"date-parts":[[2014,12]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1364\/AO.32.002606"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10043\u2010003\u20100013\u2010z"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/LPT.2006.883208"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1143\/JJAP.48.06FH04"},{"key":"e_1_2_7_6_2","doi-asserted-by":"crossref","unstructured":"MiyaoH.TakahashiK.IshidaM.SawadaK.: \u2018A tunable color filter using sub\u2010micron grating integrated with electrostatic actuator mechanism\u2019.Proc. 219th Electrochemical Society Meeting Canada 2011 35 pp.213\u2013218","DOI":"10.1149\/1.3570798"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1143\/JJAP.51.11PA01"},{"key":"e_1_2_7_8_2","doi-asserted-by":"crossref","unstructured":"HonmaH.TakahashiK.IshiiH.IshidaM.SawadaK.: \u2018A 3.3 V operated variable transmission attenuator based on subwavelength grating\u2019.Proc. 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