All Dielectric Transmissive Structural Multicolor Pixel Incorporating aResonant Grating in Hydrogenated Amorphous Silicon

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/474402.do
DOI
10.1038/s41598-017-14093-6
Title
All Dielectric Transmissive Structural Multicolor Pixel Incorporating aResonant Grating in Hydrogenated Amorphous Silicon
Description
This work was supported by a National Research Foundation of Korea (NRF)grant funded by the Korea government (MSIP) (Nos. 2016R1A2B2010170 and20110030079). The work was partly supported by the Australian ResearchCouncil Future Fellowship (FT110100853, Dr. Duk-Yong Choi), and wasperformed in part at the ACT node of the Australian National FabricationFacility.
abstract
All dielectric transmissive type polarization-tuned structural multicolor pixels (MCPs) are proposed and demonstrated based on a one-dimensional hydrogenated amorphous silicon (a-Si:H) grating integrated with a silicon nitride waveguide. Both bandpass and bandstop transmission filtering characteristics in the visible regime, centered at the same wavelength, have been achieved by tailoring the structural parameters including the duty ratio of the grating and the thickness of the dielectric waveguide. For the three manufactured MCPs, the transmission peak exceeds 70% for the transverse electric (TE) polarization and 90% for the transverse magnetic (TM) polarization as observed at the resonance and off-resonance wavelength, respectively. The polarization-switched transmissions are attributed to the guided mode resonance initiated by the interaction of the a-Si:H grating and the dielectric waveguide. A broad color palette covering the entire visible band was successfully realized from a suite of MCPs with varying grating pitches. The proposed structural color pixels are expected to facilitate the construction of dynamic displays, image sensors, optical data storage, security tags, and so forth.
provenance
Made available in Cube on 2018-09-28T10:45:07Z (GMT). No. of bitstreams: 0
language
English
author
Koirala, Ishwor
Shrestha, Vivek Raj
Park, Chul-Soon
Gao, Song
Lee, Sang-Shin
Choi, Duk-Yong
orcid
Shrestha, Vivek Raj/0000-0002-7731-7677; Koirala,
Ishwor/0000-0002-6334-2521
accessioned
2018-09-28T10:45:07Z
available
2018-09-28T10:45:07Z
issued
2017
citation
SCIENTIFIC REPORTS(7)
issn
2045-2322
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/474402.do
Funder
과학기술정보통신부
Funding Program
개인기초연구(미래부)
Project ID
1711053681
Jurisdiction
Rep.of Korea
Project Name
Visible/near-infrared spectral filters based on a subwavelength nanostructured silicon metasurface enabling reconfigurable phase and adjustable bandwidth
rights
openAccess
type
article


Files in This Item

There are no attached files.