Sánchez Postigo, Alejandro, Ginel-Moreno, Pablo, Pereira-Martin, Daniel, Hadij-El Houati, Abdelfettah, Luque-González, José Manuel, Pérez-Armenta, Carlos, Wangüemert-Pérez, J. Gonzalo, Ortega-Moñux, Alejandro, Halir, Robert, Schmid, Jens, Soler Penadés, Jordi, Nedeljković, Miloš, Ye, Winnie N., Mashanovich, Goran Z., Cheben, Pavel and Molina-Fernández, Íñigo (2022) Subwavelength-engineered metamaterial devices for integrated photonics. He, Sailing, He, Sailing and Vivien, Laurent (eds.) In Smart Photonic and Optoelectronic Integrated Circuits 2022. vol. 12005, SPIE - The International Society for Optical Engineering. p. 25 . (doi:10.1117/12.2607147).
Abstract
Subwavelength grating metamaterials have become an integral design tool in silicon photonics. The lithographic segmentation of integrated waveguides at the subwavelength scale allows us to control optical properties such as mode delocalization, wavelength dispersion, and birefringence. So far, a range of subwavelength-based devices with unprecedented performance has been demonstrated, such as couplers, polarization-handling structures, filters, and input/output chip interfaces. In this invited talk, we will review the anisotropic foundations of subwavelength-grating metamaterial design and will provide an overview of our latest advances in subwavelength-enhanced silicon photonics devices, including optical antennas for beam steering and multi-line Bragg filters for spectral shaping.
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