Classical nano-photonic technologies

Updated October 2018

Our group has a broad interest in nano-photonic technologies. Currently we are interested in the topic of controlling optical wavefronts propagating through free-space using materials where the refractive index is structured with sub-wavelength spatial resolution. When these materials are very thin (thinner than the free space wavelength), they are currently referred to as dielectric metasurfaces.

Dielectric metasurfaces are planar devices that promise to replace optical components like lenses, mirrors, polarizers, waveplates. We are working with deielctric metasurfaces in the form of high contranst transmitarrays and high contrst gratings. We are using these structures for applications like wide field imaging, microscopy, conformal optics, computational imaging, etc. The image below shows a scanning electron microscope image of a polarization and phase plate with sub-wavelength spatial resolution.

Selected publications

  1. Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Andrei Faraon, A review of dielectric optical metasurfaces for wavefront control, Nanophotonics , 2018-05-18
  2. Andrei Faraon, Amir Arbabi, Yu Horie, Ehsan Arbabi, Seyedeh Mahsa Kamali, Flat free-space optical elements based on dielectric metasurfaces, SPIE Newsroom, (2016), [DOI: 10.1117/2.1201604.006375]
  3. MohammadSadegh Faraji-Dana, Ehsan Arbabi, Amir Arbabi, Seyedeh Mahsa Kamali, Hyounghan Kwon, Andrei Faraon, Compact Folded Metasurface Spectrometer, Nature Communications , volume 9, Article number: 4196 (2018), ArXiv Version
  4. Hyounghan Kwon, Ehsan Arbabi, Seyedeh Mahsa Kamali, MohammadSadegh Faraji-Dana, Andrei Faraon, Computational complex optical field imaging using a designed metasurface diffuser, Optica , Vol. 5, Issue 8, pp. 924-931 (2018), [doi:10.1364/OPTICA.5.000924]
  5. Mooseok Jang, Yu Horie, Atsushi Shibukawa, Joshua Brake, Yan Liu, Seyedeh Mahsa Kamali, Amir Arbabi, Haowen Ruan, Andrei Faraon, Changhuei Yang, Wavefront shaping with disorder-engineered metasurfaces, Nature Photonics , volume 12, pages84–90 (2018), ArXiv Version
  6. Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Yu Horie, MohammadSadegh Faraji-Dana, Andrei Faraon, Angle-multiplexed metasurfaces: encoding independent wavefronts in a single metasurface under different illumination angles, Physical Review X , ,7, 041056, 2017, See highlights in Caltech News , APS Physics
  7. Amir Arbabi, Ehsan Arbabi, Yu Horie, Seyedeh Mahsa Kamali, Andrei Faraon, Planar metasurface retroreflector, Nature Photonics , 11, 415–420 (2017), [doi:10.1038/nphoton.2017.96]. (Caltech news coverage)
  8. Ehsan Arbabi, Amir Arbabi, Seyedeh Mahsa Kamali, Yu Horie, Andrei Faraon, Controlling the sign of chromatic dispersion in diffractive optics with dielectric metasurfaces, Optica, Vol. 4, Issue 6, pp. 625-632 (2017), [https://doi.org/10.1364/OPTICA.4.000625], (arXiv:1701.07178) (Caltech news coverage) (Higlighted in Science Magazine)
  9. Amir Arbabi, Ehsan Arbabi, Seyedeh Mahsa Kamali, Yu Horie, Seunghoon Han, Andrei Faraon, Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations, Nature Communications, 7, Article number: 13682, (2016), [DOI: 10.1038/ncomms13682], (arXiv:1604.06160) (media coverage) (news and views)
  10. Ehsan Arbabi, Amir Arbabi, Seyedeh Mahsa Kamali, Yu Horie, Andrei Faraon, Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules, Optica Vol. 3, Issue 6, pp. 628-633 (2016),[https://doi.org/10.1364/OPTICA.3.000628], (arXiv:1601.05847)
  11. Seyedeh Mahsa Kamali, Amir Arbabi, Ehsan Arbabi, Yu Horie, Andrei Faraon, Decoupling optical function and geometrical form using conformal flexible dielectric metasurfaces, Nature Communications, 7, Article number: 11618 (2016), [DOI:10.1038/ncomms11618], (arXiv:1511.04824)
  12. Mikael P. Backlund, Amir Arbabi, Petar N. Petrov, Ehsan Arbabi, Saumya Saurabh, Andrei Faraon, W. E. Moerner, Removing orientation-induced localization biases in single-molecule microscopy using a broadband metasurface mask, Nature Photonics, 10, 459–462 (2016), [DOI:10.1038/nphoton.2016.93]
  13. Amir Arbabi, Yu Horie, Mahmood Bagheri, Andrei Faraon, Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission, Nature Nanotechnology 10, 937–943 (2015), [doi:10.1038/nnano.2015.186],
  14. Amir Arbabi, Yu Horie, Alexander J. Ball, Mahmood Bagheri, Andrei Faraon, Subwavelength-thick Lenses with High Numerical Apertures and Large Efficiency Based on High Contrast Transmitarrays, Nature Communication 6:7069, 2015, (also arXiv:1410.8261 [physics.optics])