43 citations · 152 across the 19 of their papers we have counts for
19 papers
Optically Incoherent Photonic Mutual Information
Francis J. Chen, Alessio Amaolo, Pengning Chao +3
While traditional evaluations of optical information transfer rely on disjointed abstractions to bridge electromagnetic propagation, coherence, and communication theory, we introdu…
Indexed singular value bounds on scattering operators: How many channels can a photonic device support?
Paul Virally, Pengning Chao, Alessio Amaolo +2
Spectral properties of scattering operators, and their dependence on geometry, are of crucial importance to photonic design, enabling low-rank approximations and improved understan…
Inferring Structure via Duality for Photonic Inverse Design
Sean Molesky, Pengning Chao, Alessio Amaolo +1
Led by a result derived from Sion's minimax theorem concerning constraint violation in quadratically constrained quadratic programs (QCQPs) with at least one constraint bounding th…
Bounds as blueprints: towards optimal and accelerated photonic inverse design
Pengning Chao, Alessio Amaolo, Sean Molesky +1
Our ability to structure materials at the nanoscale has, and continues to, enable key advances in optical control. In pursuit of optimal photonic designs, substantial progress has…
Maximum Shannon Capacity of Photonic Structures
Alessio Amaolo, Pengning Chao, Benjamin Strekha +4
Information transfer through electromagnetic waves is an important problem that touches a variety of technologically relevant applications, including computing and telecommunicatio…
Limitations on bandwidth-integrated passive cloaking
Benjamin Strekha, Alessio Amaolo, Jewel Mohajan +3
We present a general framework for the computation of structure-agnostic bounds on the performance of passive cloaks over a nonzero bandwidth. We apply this framework in 2D to the…
Physical limits on Raman scattering: the critical role of pump and signal co-design
Alessio Amaolo, Pengning Chao, Thomas J. Maldonado +2
We present a method for deriving limits on Raman scattering in structured media and exploit it to constrain the maximum Raman signal resulting from a planewave incident on either a…
Suppressing electromagnetic local density of states via slow light in lossy quasi-1d gratings
Benjamin Strekha, Pengning Chao, Rodrick Kuate Defo +2
We propose a spectral-averaging procedure that enables computation of bandwidth-integrated local density of states (LDOS) from a single scattering calculation, and exploit it to in…
Can photonic heterostructures provably outperform single-material geometries?
Alessio Amaolo, Pengning Chao, Thomas J. Maldonado +2
Recent advances in photonic optimization have enabled calculation of performance bounds for a wide range of electromagnetic objectives, albeit restricted to single-material systems…
Fundamental limits on second harmonic generation
Jewel Mohajan, Pengning Chao, Weiliang Jin +2
Recent advances in fundamental performance limits for power quantities based on Lagrange duality are proving to be a powerful theoretical tool for understanding electromagnetic wav…
Maximum Electromagnetic Local Density of States via Material Structuring
Pengning Chao, Rodrick Kuate Defo, Sean Molesky +1
The electromagnetic local density of states (LDOS) is crucial to many aspects of photonics engineering, from enhancing emission of photon sources to radiative heat transfer and pho…
Trace Expressions and Associated Limits for Non-Equilibrium Casimir Torque
Benjamin Strekha, Sean Molesky, Pengning Chao +2
We exploit fluctuational electrodynamics to present trace expressions for the torque experienced by arbitrary objects in a passive, non-absorbing, rotationally invariant background…
Physical limits on electromagnetic response
Pengning Chao, Benjamin Strekha, Rodrick Kuate Defo +2
Photonic devices play an increasingly important role in advancing physics and engineering, and while improvements in nanofabrication and computational methods have driven dramatic…
On Sion's Minimax Theorem, Compact QCQPs, and Wave Scattering Optimization
Sean Molesky, Pengning Chao, Alejandro W. Rodriguez
In these notes, we examine certain implications of Sion's minimax theorem for compact quadratically constrained quadratic programs (QCQPs), particularly QCQPs arising in the contex…
-Operator Limits on Optical Communication: Metaoptics, Computation, and Input-Output Transformations
Sean Molesky, Pengning Chao, Jewel Mohajan +3
We present an optimization framework based on Lagrange duality and the scattering operator of electromagnetism to construct limits on the possible features that may be…
Hierarchical Mean-Field Operator Bounds on Electromagnetic Scattering: Upper Bounds on Near-Field Radiative Purcell Enhancement
Sean Molesky, Pengning Chao, Alejandro W. Rodriguez
We show how the central equality of scattering theory, the definition of the operator, can be used to generate hierarchies of mean-field constraints that act as natura…
Inverse-designed photon extractors for optically addressable defect qubits
Srivatsa Chakravarthi, Pengning Chao, Christian Pederson +6
Solid-state defect qubit systems with spin-photon interfaces show great promise for quantum information and metrology applications. Photon collection efficiency, however, presents…
Global operator bounds on electromagnetic scattering: Upper bounds on far-field cross sections
Sean Molesky, Pengning Chao, Weiliang Jin +1
We present a method based on the scattering operator, and conservation of net real and reactive power, to provide physical bounds on any electromagnetic design objecti…
Fundamental limits to attractive and repulsive Casimir--Polder forces
Prashanth S. Venkataram, Sean Molesky, Pengning Chao +1
We derive upper and lower bounds on the Casimir--Polder force between an anisotropic dipolar body and a macroscopic body separated by vacuum via algebraic properties of Maxwell's e…