Here, we propose a global evolutionary optimization approach to inverse design non-local metasurfaces. The optimal designs are experimentally validated, demonstrating the highest efficiencies for the thinnest t
Inverse design methods produce nanophotonic devices with arbitrary geometries that show high efficiencies as well as novel functionalities. Ensuring fabricability during optimization of these unrestricted device geometries is a major challenge for these design methods. In this work, we construct a fabricatio...
Inverse design methods have been used widely in many different areas. One area that extensively utilizes the inverse design method is the airfoil design. The problem of airfoil design has existed since the time when man started thinking about ‘flying’ until the present time. This problem is so...
In this study, we introduce a bilayer quadrangular prismatic metasurface absorber (BQPMA) with micro-nanostructure designs both on the surface and above the substrate. We incorporate deep learning techniques, specifically artificial neural networks (ANN), for inverse design of the entire structure. Dur...
We demonstrate a multi-fidelity (MF) machine learning ensemble framework for the inverse design of photonic surfaces, trained on a dataset of 11,759 samples that we fabricate using high throughput femtosecond laser processing. The MF ensemble combines an
(b) A linearization approach to design large area metasurfaces. Top: the linearization strategy by slicing the desired phase profile into wavelength-scale sections, and then using TO to model individual piece. Bottom: simulated and experimental intensity distributions of a high NA (=0.8) meta-...
Counter- intuitively, breaking with the periodicity of classical metamaterials is the enabling factor to the large property space and the ability to introduce seamless functional grading. We introduce an efficient and robust machine learning technique for the inverse design of (meta-)materials which, ...
metasurfacesnanofabricationplasmonic nanostructuresPlasmonics is a field uniquely driven by advances in microand nanofabrication. Many design ideas pose significant challenges in their experimental realization and test the limits of modern fabrication techniques. Here, the combination of electron‐beam and gold...
Designed or patterned structured surfaces, metasurfaces, enable the miniaturization of complex arrangements of optical elements on a plane. Most of the existing literature focuses on miniaturizing the optical detection; little attention is directed to on
Metalens-based maskless lithography may open a new way of achieving low-cost, large-area nanofabrication. Keywords: inverse design; maskless lithography; metalens. 1 Introduction Zone-plate-array lithography (ZPAL) creates patterns of arbitrary geometry by overlapping focal spots produced by an array ...