Lithography-free, broadband, omnidirectional, and polarization-insensitive thin optical absorber
2015 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 106, no 6, 061108Article in journal (Refereed) Published
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
IdentifiersURN: urn:nbn:se:kth:diva-162958DOI: 10.1063/1.4908182ISI: 000349845300008ScopusID: 2-s2.0-84923902096OAI: oai:DiVA.org:kth-162958DiVA: diva2:800037
FunderSwedish Research Council
QC 201504012015-04-012015-03-262015-04-01Bibliographically approved