6 papers
The transversal achievement game on a square grid
Kevin Guan
In the transversal achievement game on the board, two players alternately claim cells, and the first to own a transversal---a set of cells of which no two share a r…
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…
Adaptive Sensing beyond Non-Adaptive Information Limits: End-to-End Co-Design of Geometry, Policy, and Inference
Arvin Keshvari, William Tuxbury, Zin Lin
Inverse design has transformed vast physical parameter spaces into a substrate for emergent functionality, raising the tantalizing prospect of relocating intelligence from the digi…
Synthetic Reflectionless Mode Exceptional Degeneracies via Emergent Local Symmetries
William Tuxbury, Lucas Fernandez-Alcazar, Tsampikos Kottos
We propose a new kind of physically realizable exceptional point degeneracies (EPDs) corresponding to synthetic reflectionless modes (SRM). These are solutions of an auxiliary wave…
Unidirectional Amplification in the Frozen Mode Regime Enabled by a Nonlinear Defect
Serena Landers, William Tuxbury, Ilya Vitebskiy +1
A stationary inflection point (SIP) is a spectral singularity of the Bloch dispersion relation of a periodic structure where the first and the second derivatives of wi…
Damping Reveals Hidden Dimensions in Elastic Metastructures Through Induced Transparency
Yanghao Fang, William Tuxbury, Abhishek Gupta +2
Damping typically results in attenuation of vibrations and elastic wave propagation in mechanical systems. Contrary to this conventional understanding, we demonstrate experimentall…