102 citations · 246 across the 4 of their papers we have counts for
5 papers
Co-Design of Free-Space Metasurface Optical Neuromorphic Classifiers for High Performance
François Léonard, Adam S. Backer, Elliot J. Fuller +2
Classification of features in a scene typically requires conversion of the incoming photonic field into the electronic domain. Recently, an alternative approach has emerged whereby…
Computational inverse design for cascaded systems of metasurface optics
Adam S. Backer
Metasurfaces are an emerging technology that may supplant many of the conventional optics found in imaging devices, displays, and precision scientific instruments. Here, we develop…
Achromatic varifocal metalens for the visible spectrum
Maxwell D. Aiello, Adam S. Backer, Aryeh J. Sapon +4
Metasurface optics provide an ultra-thin alternative to conventional refractive lenses. A present challenge is in realizing metasurfaces that exhibit tunable optical properties and…
Nematic cells with defect-patterned alignment layers
Adam S. Backer, A. C. Callan-Jones, Robert A. Pelcovits
Using Monte Carlo simulations of the Lebwohl--Lasher model we study the director ordering in a nematic cell where the top and bottom surfaces are patterned with a lattice of $\pm 1…
Symbolic Dynamics and Periodic Orbits for the Cardioid Billiard
A. Bäcker, H. R. Dullin
The periodic orbits of the strongly chaotic cardioid billiard are studied by introducing a binary symbolic dynamics. The corresponding partition is mapped to a topological well-ord…