AffiliationCollege of Optical Sciences, University of Arizona
MetadataShow full item record
PublisherDe Gruyter Open Ltd
CitationBalli, F., Sultan, M. A., Ozdemir, A., & Hastings, J. T. (2021). An ultrabroadband 3D achromatic metalens. Nanophotonics, 10(4), 1259-1264.
Rights© 2021 Fatih Balli et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractWe design and fabricate ultra-broadband achromatic metalenses operating from the visible into the short-wave infrared, 450-1700 nm, with diffraction-limited performance. A hybrid 3D architecture, which combines nanoholes with a phase plate, allows realization in low refractive index materials. As a result, two-photon lithography can be used for prototyping while molding can be used for mass production. Experimentally, a 0.27 numerical aperture (NA) metalens exhibits 60% average focusing efficiency and 6% maximum focal length error over the entire bandwidth. In addition, a 200 μm diameter, 0.04 NA metalens was used to demonstrate achromatic imaging over the same broad spectral range. These results show that 3D metalens architectures yield excellent performance even using low-refractive index materials, and that two-photon lithography can produce metalenses operating at visible wavelengths.
NoteOpen access journal
VersionFinal published version
Except where otherwise noted, this item's license is described as © 2021 Fatih Balli et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License.