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Lithography-free, broadband, omnidirectional, and polarization-insensitive thin optical absorber
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2015 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 106, no 6, 061108Article in journal (Refereed) Published
Abstract [en]

We have proposed and experimentally demonstrated a lithography-free, broadband, thin optical absorber composed of planar multilayered dielectric and metal films, which can cover the total visible wavelength range with simulated and experimental absorption efficiencies higher than 90%. Moreover, the absorption is insensitive to the polarization and angle of incidence. Such a planar device is much easier to fabricate compared with other broadband absorbers with complicated structures and may have potential applications in solar energy harvesting and controllable thermal emission.

Place, publisher, year, edition, pages
2015. Vol. 106, no 6, 061108
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-162958DOI: 10.1063/1.4908182ISI: 000349845300008Scopus ID: 2-s2.0-84923902096OAI: oai:DiVA.org:kth-162958DiVA: diva2:800037
Funder
Swedish Research Council
Note

QC 20150401

Available from: 2015-04-01 Created: 2015-03-26 Last updated: 2017-12-04Bibliographically approved

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