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Angle-tolerant linear variable color filter based on a tapered etalon

Ji, Peng; Park, Chul-Soon; Gao, Song; Lee, Sang-Shin; Choi, Duk-Yong


We propose and fabricate a linear variable color filter (LVCF) that possesses an enhanced angular tolerance in conjunction with a wide linear filtering range (LFR) by taking advantage of an Ag-TiO2-Ag configuration. The TiO2 cavity is tapered in thickness along the device so that the resonance wavelength can be continuously tuned according to the position. In addition, the metal-dielectric-metal structure is overlaid with a pre-designed graded anti-reflection coating in SiO2 to complete...[Show more]

CollectionsANU Research Publications
Date published: 2017-02-06
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.25.002153


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