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Polarization-Insensitive Metalenses at Visible Wavelengths

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Khorasaninejad, M., Zhu, A. Y., Roques-Carmes, C., Chen, W. T., Oh, J., Mishra, I., Devlin, R. C., Capasso, F.·2016·Nano Letters

Abstract

In this Letter, we demonstrate highly efficient, polarization-insensitive planar lenses (metalenses) at red, green, and blue wavelengths (λ = 660, 532, and 405 nm). Metalenses with numerical apertures (NA) of 0.85 and 0.6 and corresponding efficiencies as high as 60% and 90% are achieved. These metalenses are less than 600 nm-thick and can focus incident light down to diffraction-limited spots as small as ∼0.64λ and provide high-resolution imaging. In addition, the focal spots are very symmetric with high Strehl ratios. The single step lithography and compatibility with large-scale fabrication processes make metalenses highly promising for widespread applications in imaging and spectroscopy.

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Metadata

Authors
Khorasaninejad, M., Zhu, A. Y., Roques-Carmes, C., Chen, W. T., Oh, J., Mishra, I., Devlin, R. C., & Capasso, F.
Venue
Nano Letters
Published
2016-10-28
Volume
16
Issue
11
Pages
7229-7234
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2535756017
Cited by
767
References
46
FWCI
19.35
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Polarization-Insensitive Metalenses at Visible Wavelengths. https://app.cochat.ai/papers/10.1021/acs.nanolett.6b03626
The paper
Khorasaninejad, M., Zhu, A. Y., Roques-Carmes, C., Chen, W. T., Oh, J., Mishra, I., Devlin, R. C., & Capasso, F. (2016). Polarization-Insensitive Metalenses at Visible Wavelengths. Nano Letters. https://doi.org/10.1021/acs.nanolett.6b03626

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