Multiwavelength polarization insensitive lenses based on dielectric metasurfaces with meta-molecules

By E. Arbabi, Amir Arbabi, Seyedeh Mahsa Kamali, Y. Horie, A. Faraon. 2016

416 citations recorded by the source corpus.

Metasurfaces are nano-structured devices composed of arrays of subwavelength scatterers (or meta-atoms) that manipulate the wavefront, polarization, or intensity of light. Like other diffractive optical devices, metasurfaces suffer from significant chromatic aberrations that limit their bandwidth. Here, we present a method for designing multiwavelength metasurfaces using unit cells with multiple meta-atoms, or meta-molecules. Transmissive lenses with efficiencies as high as 72% and numerical apertures as high as 0.46 simultaneously operating at 915 nm and 1550 nm are demonstrated. With proper scaling, these devices can be used in applications where operation at distinct known wavelengths is required, like various fluorescence microscopy techniques.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/8ad164b3d1f3d25a2b679a050fca43c6029546d8

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In Atomic and Molecular Physics, and Optics

1. Seyedeh Mahsa Kamali
2. E. Arbabi
3. A. Faraon
4. Amir Arbabi
5. Y. Horie
6. Arka Majumdar
7. Shane Colburn
8. A. Zhan

In Biomedical Engineering

1. A. Faraon
2. Seyedeh Mahsa Kamali
3. E. Arbabi
4. Amir Arbabi
5. Arka Majumdar
6. Shane Colburn
7. Y. Horie
8. A. Zhan

In Electronic, Optical and Magnetic Materials

1. Seyedeh Mahsa Kamali
2. E. Arbabi
3. A. Faraon
4. Amir Arbabi
5. Y. Horie
6. Arka Majumdar
7. Shane Colburn
8. A. Zhan

Citations in the corpus

• Controlling the sign of chromatic dispersion in diffractive optics (2017, neutral): “However, at each of these focal distances (deflection angles), the multi-wavelength lenses (gratings) exhibit the regular negative diffractive chromatic dispersion (see [30,31], Supplement 1, Section S3, and Fig.”
• Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations (2016, methodology): “ f ffrom the metasurface lens. Because of the phase jumps at the zone boundaries of the metasurface lens, the fractional change in the focal length is equal to the fractional change in the wavelength [1], that is f f = : (3) As increases the focal plane of the lens moves further away from the imag”
• Metasurface optics for full-color computational imaging (2018, background): “faces originate from both the local resonant behavior of the sub-wavelength optical scatterers, as well as from phase wrapping discontinuities arising 3 from the spatial arrangement of the scatterers (18). For lenses, this chromaticity manifests as wavelength-dependent blur in images, which constrai”