article published yes Zhujun Shi author Mohammadreza Khorasaninejad author Yao-Wei Huang author Charles Roques-Carmes author e2e68fc9-6505-11ef-a541-eb4e72cc3e82 Alexander Y. Zhu author Wei Ting Chen author Vyshakh Sanjeev author Zhao-Wei Ding author Michele Tamagnone author Kundan Chaudhary author Robert C. Devlin author Cheng-Wei Qiu author Federico Capasso author In this paper, we report dispersion-engineered metasurfaces with distinct functionalities controlled by wavelength. Unlike previous approaches based on spatial multiplexing or vertical stacking of metasurfaces, we utilize a single phase profile with wavelength dependence encoded in the phase shifters’ dispersion. We designed and fabricated a multiwavelength achromatic metalens (MAM) with achromatic focusing for blue (B), green (G), yellow (Y), and red (R) light and two wavelength-controlled beam generators (WCBG): one focuses light with orbital angular momentum (OAM) states (l = 0,1,2) corresponding to three primary colors; the other produces ordinary focal spots (l = 0) for red and green light, while generating a vortex beam (l = 1) in the blue. A full color (RGB) hologram is also demonstrated in simulation. Our approach opens a path to applications ranging from near-eye displays and holography to compact multiwavelength beam generation. American Chemical Society 2018 eng Metasurfacedispersion engineeringvisible spectrumtitanium dioxideorbital angular momentum statesachromatic metalens 1530-6984 1530-6992 2946183810.1021/acs.nanolett.7b05458 1842420-2427 yes Shi Z, Khorasaninejad M, Huang Y-W, Roques-Carmes C, Zhu AY, Chen WT, Sanjeev V, Ding Z-W, Tamagnone M, Chaudhary K, Devlin RC, Qiu C-W, Capasso F. 2018. Single-layer metasurface with controllable multiwavelength functions. Nano Letters. 18(4), 2420–2427. Shi Z, Khorasaninejad M, Huang Y-W, et al. Single-layer metasurface with controllable multiwavelength functions. <i>Nano Letters</i>. 2018;18(4):2420-2427. doi:<a href="https://doi.org/10.1021/acs.nanolett.7b05458">10.1021/acs.nanolett.7b05458</a> Shi, Zhujun, Mohammadreza Khorasaninejad, Yao-Wei Huang, Charles Roques-Carmes, Alexander Y. Zhu, Wei Ting Chen, Vyshakh Sanjeev, et al. “Single-Layer Metasurface with Controllable Multiwavelength Functions.” <i>Nano Letters</i>. American Chemical Society , 2018. <a href="https://doi.org/10.1021/acs.nanolett.7b05458">https://doi.org/10.1021/acs.nanolett.7b05458</a>. Shi, Zhujun, et al. “Single-Layer Metasurface with Controllable Multiwavelength Functions.” <i>Nano Letters</i>, vol. 18, no. 4, American Chemical Society , 2018, pp. 2420–27, doi:<a href="https://doi.org/10.1021/acs.nanolett.7b05458">10.1021/acs.nanolett.7b05458</a>. Z. Shi <i>et al.</i>, “Single-layer metasurface with controllable multiwavelength functions,” <i>Nano Letters</i>, vol. 18, no. 4. American Chemical Society , pp. 2420–2427, 2018. Z. Shi, M. Khorasaninejad, Y.-W. Huang, C. Roques-Carmes, A.Y. Zhu, W.T. Chen, V. Sanjeev, Z.-W. Ding, M. Tamagnone, K. Chaudhary, R.C. Devlin, C.-W. Qiu, F. Capasso, Nano Letters 18 (2018) 2420–2427. Shi, Z., Khorasaninejad, M., Huang, Y.-W., Roques-Carmes, C., Zhu, A. Y., Chen, W. T., … Capasso, F. (2018). Single-layer metasurface with controllable multiwavelength functions. <i>Nano Letters</i>. American Chemical Society . <a href="https://doi.org/10.1021/acs.nanolett.7b05458">https://doi.org/10.1021/acs.nanolett.7b05458</a> 215232026-03-30T12:22:47Z2026-04-15T07:52:46Z