In the last two decades, metamaterials and metasurfaces have introduced many new
electromagnetic (EM) theory concepts and inspired contemporary design methodologies for …

Since the invention of the silicon subwavelength grating waveguide in 2006, subwavelength
metamaterial engineering has become an essential design tool in silicon photonics …

Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Abstract Silicon nitride (Si3N4) waveguides become an appealing choice to realize complex
photonic integrated circuits for applications in telecom/datacom transceivers, sensing, and …

The growing maturity of nanofabrication technology has recently enabled the deployment of
high‐quality subwavelength nanostructures on photonic chips. Combining existing photonic …

Multimode waveguide crossings (MWCs) are becoming more and more important as one of
the key elements for on‐chip optical routing and cross‐connection. However, it is still very …

The polarization beam splitter (PBS) is a pivotal element in the polarization management of
free‐space optical instruments and systems. Photonic integrated circuits for sensing …

Silicon photonic (SiP) evanescent-field biosensors aim to combine the information-rich
readouts offered by lab-scale diagnostics, at a significantly lower cost, and with the …

Lithium niobate on insulator (LNOI) has emerged as a promising platform for photonic
integrated circuits, with a fast‐growing toolbox of components. This paper proposes …

Efficient fiber-chip coupling interfaces are critically important for integrated photonics. Since
surface gratings diffract optical signals vertically out of the chip, these couplers can be …