3 papers
physics.optics2026
Differentiable Fast Far-Field Transform in Cylindrical Coordinates for Large-Area Cascaded Metalens Optics
Arvin Keshvari, Ata Shakeri, William Tuxbury +4
We present a fully differentiable far-field transform in cylindrical coordinates for full-area point spread function (PSF) evaluation and optimization of large axisymmetric metalen…
physics.optics2025
Exploiting nonlinear incoherent image formation through linear volume metaoptics for inference
Nan Zhang, Arvin Keshvari, Ata Shakeri +1
We showed that a 2D depth map representing an incoherent 3D opaque scene is directly encoded in the response function of an imaging optics. As a result, the optics creates an image…
physics.optics2025
Scalable freeform optimization of wide-aperture 3D metalenses by zoned discrete axisymmetry
Mengdi Sun, Ata Shakeri, Arvin Keshvari +5
We introduce a novel framework for design and optimization of 3D freeform metalenses that attains nearly linear scaling of computational cost with diameter, by breaking the lens in…