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Trans-reflective color filters based on a phase compensated etalon enabling adjustable color saturation

Park, Chul-Soon; Shrestha, Vivek Raj; Lee, Sang-Shin; Choi, Duk-Yong

Description

Trans-reflective color filters, which take advantage of a phase compensated etalon (silver-titania-silver-titania) based nano-resonator, have been demonstrated to feature a variable spectral bandwidth at a constant resonant wavelength. Such adjustment of the bandwidth is presumed to translate into flexible control of the color saturation for the transmissive and reflective output colors produced by the filters. The thickness of the metallic mirror is primarily altered to tailor the bandwidth,...[Show more]

dc.contributor.authorPark, Chul-Soon
dc.contributor.authorShrestha, Vivek Raj
dc.contributor.authorLee, Sang-Shin
dc.contributor.authorChoi, Duk-Yong
dc.date.accessioned2016-09-29T04:32:20Z
dc.date.available2016-09-29T04:32:20Z
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/1885/109112
dc.description.abstractTrans-reflective color filters, which take advantage of a phase compensated etalon (silver-titania-silver-titania) based nano-resonator, have been demonstrated to feature a variable spectral bandwidth at a constant resonant wavelength. Such adjustment of the bandwidth is presumed to translate into flexible control of the color saturation for the transmissive and reflective output colors produced by the filters. The thickness of the metallic mirror is primarily altered to tailor the bandwidth, which however entails a phase shift associated with the etalon. As a result, the resonant wavelength is inevitably displaced. In order to mitigate this issue, we attempted to compensate for the induced phase shift by introducing a dielectric functional layer on top of the etalon. The phase compensation mediated by the functional layer was meticulously investigated in terms of the thickness of the metallic mirror, from the perspective of the resonance condition. The proposed color filters were capable of providing additive colors of blue, green, and red for the transmission mode while exhibiting subtractive colors of yellow, magenta, and cyan for the reflection mode. The corresponding color saturation was estimated to be efficiently adjusted both in transmission and reflection.
dc.description.sponsorshipThis work was supported by a National Research Foundation of Korea grant funded by the Korean government (MSIP) (No. 2011-0030079), and by a research grant from Kwangwoon University in 2016. The work was partly supported by the Australian Research Council Future Fellowship (FT110100853, Dr. Duk-Yong Choi) and was performed in part at the ACT node of the Australian National Fabrication Facility.
dc.publisherNature Publishing Group
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
dc.sourceScientific reports
dc.titleTrans-reflective color filters based on a phase compensated etalon enabling adjustable color saturation
dc.typeJournal article
local.identifier.citationvolume6
dc.date.issued2016
local.publisher.urlhttp://www.nature.com/
local.type.statusPublished Version
local.contributor.affiliationChoi, D., Laser Physics Centre, The Australian National University
dc.relationhttp://purl.org/au-research/grants/arc/FT110100853
local.identifier.essn2045-2322
local.bibliographicCitation.startpage25496
local.identifier.doi10.1038/srep25496
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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