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Hyper-Selective Plasmonic Color Filters

Fleischman, Dagny and Sweatlock, Luke A. and Murakami, Hirotaka and Atwater, Harry (2017) Hyper-Selective Plasmonic Color Filters. Optics Express, 25 (22). pp. 27386-27395. ISSN 1094-4087.

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The subwavelength mode volumes of plasmonic filters are well matched to the small size of state-of-the-art active pixels in CMOS image sensor arrays used in portable electronic devices. Typical plasmonic filters exhibit broad (> 100 nm) transmission bandwidths suitable for RBG or CMYK color filtering. Dramatically reducing the peak width of filter transmission spectra would allow for the realization of CMOS image sensors with multi- and hyperspectral imaging capabilities. We find that the design of 5 layer metal-insulator-metal-insulator-metal structures gives rise to multi-mode interference phenomena that suppress spurious transmission features and give rise to single transmission bands as narrow as 17 nm. The transmission peaks of these multilayer slot-mode plasmonic filters (MSPFs) can be systematically varied throughout the visible and near infrared spectrum, leading to a filter that is CMOS integrable, since the same basic MSPF structure can operate over a large range of wavelengths. We find that MSPF filter designs that can achieve a bandwidth less than 30 nm across the visible and demonstrate experimental prototypes with a FWHM of 70 nm, and we describe how experimental structure can be made to approach the limits suggested by the model.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Atwater, Harry0000-0001-9435-0201
Additional Information:© 2017 Optical Society of America. Received 3 Aug 2017; revised 5 Oct 2017; accepted 11 Oct 2017; published 24 Oct 2017. Funding: Sony Corporation; the Hybrid Nanophotonics Multidisciplinary University Research Initiative Grant (Air Force Office of Scientific Research FA9550-12-1-0024); Northrop Grumman Corporation. LAS acknowledges support from the Resnick Sustainability Institute at Caltech. DF gratefully acknowledges helpful discussions with Michelle Sherrott, Max Jones, Matt Sullivan, and Charles Shaw. The facilities of the Kavli Nanoscience Institute (KNI) at Caltech are gratefully acknowledged.
Group:Resnick Sustainability Institute, Kavli Nanoscience Institute
Funding AgencyGrant Number
Sony CorporationUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0024
Northrop Grumman CorporationUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
Resnick Sustainability InstituteUNSPECIFIED
Issue or Number:22
Classification Code:OCIS codes: (250.5403) Plasmonics; (050.6624) Subwavelength structures
Record Number:CaltechAUTHORS:20170313-091445373
Persistent URL:
Official Citation:Dagny Fleischman, Luke A. Sweatlock, Hirotaka Murakami, and Harry Atwater, "Hyper-selective plasmonic color filters," Opt. Express 25, 27386-27395 (2017)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75052
Deposited By: Tony Diaz
Deposited On:13 Mar 2017 16:19
Last Modified:03 Oct 2019 16:46

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