Sean Molesky
Princeton University
Terahertz radiationMetamaterialPlasmonThermophotovoltaicOpticsPhysicsBlack-body radiationPhotonUltrashort pulseScatteringMaterials scienceThermalInversePhotonicsNear and far fieldComputational physicsOptoelectronicsWavelengthRadiative transferThermal radiation
57Publications
17H-index
2,176Citations
Publications 52
Newest
#1Pengning ChaoH-Index: 6
Last. Alejandro W. RodriguezH-Index: 41
view all 5 authors...
Photonic devices play an increasingly important role in advancing physics and engineering, and while improvements in nanofabrication and computational methods have driven dramatic progress in expanding the range of achievable optical characteristics, they have also greatly increased design complexity. These developments have led to heightened relevance for the study of fundamental limits on optical response. Here, we review recent progress in our understanding of these limits with special focus ...
#1Gavin P. Forcade (U of O: University of Ottawa)
#2Christopher E. Valdivia (U of O: University of Ottawa)H-Index: 12
Last. Karin Hinzer (U of O: University of Ottawa)H-Index: 21
view all 8 authors...
Enormous potential lies in waste-heat recycling for the world’s industrial sector. Portable solid-state modules are a universal low-maintenance method to recycle this waste-heat. One such technology, near-field thermophotovoltaics (NFTPV), relies on a heat source in extreme proximity (<200 nm) to a photovoltaic cell, which then generates electricity. We developed an optoelectronic model where electron-hole pair generation rates are calculated using fluctuation electrodynamics, which we input int...
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#1Sean MoleskyH-Index: 17
#2Pengning ChaoH-Index: 6
Last. Alejandro W. RodriguezH-Index: 41
view all 3 authors...
We prove that a special variety of quadratically constrained quadratic programs, occurring frequently in conjunction with the design of wave systems obeying causality and passivity (i.e. systems with bounded response), universally exhibit strong duality. Directly, the problem of continuum ("grayscale" or "effective medium") device design for any (complex) quadratic wave objective governed by independent quadratic constraints can be solved as a convex program. The result guarantees that performan...
#1Sean MoleskyH-Index: 17
#2Pengning ChaoH-Index: 6
Last. Alejandro W. RodriguezH-Index: 41
view all 6 authors...
We present an optimization framework based on Lagrange duality and the scattering \mathbb{T}operator of electromagnetism to construct limits on the possible features that may be imparted to a collection of output fields from a collection of input fields, i.e., constraints on achievable optical transformations and the characteristics of structured materials as communication channels. Implications of these bounds on the performance of representative optical devices having multi-wavelength or mu...
#1Sean Molesky (Princeton University)H-Index: 17
#2Pengning Chao (Princeton University)H-Index: 6
Last. Alejandro W. Rodriguez (Princeton University)H-Index: 41
view all 3 authors...
This paper uses localized spatial clusters constraints to show how the definition of the \mathbb{T}operator can be used to generate hierarchies of increasingly accurate fundamental limits on wave scattering phenomena.
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#2Pengning ChaoH-Index: 6
Last. Kai-Mei C. FuH-Index: 34
view all 9 authors...
Solid-state defect qubit systems with spin-photon interfaces show great promise for quantum information and metrology applications. Photon collection efficiency, however, presents a major challenge for defect qubits in high refractive index host materials. Inverse-design optimization of photonic devices enables unprecedented flexibility in tailoring critical parameters of a spin-photon interface including spectral response, photon polarization, and collection mode. Further, the design process ca...
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#2Pengning ChaoH-Index: 6
Last. Kai-Mei C. FuH-Index: 34
view all 9 authors...
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#1Srivatsa Chakravarthi (UW: University of Washington)H-Index: 5
#2Pengning Chao (Princeton University)H-Index: 6
Last. Kai-Mei C. Fu (UW: University of Washington)H-Index: 34
view all 7 authors...
Photon collection presents a major challenge for optically addressable defects in high index materials like diamond. We demonstrate an inverse-design planar dielectric photon extractor operating near the theoretical limit for NV centers in diamond.
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#1Sean MoleskyH-Index: 17
#2Pengning ChaoH-Index: 6
Last. Alejandro W. Rodriguez (Princeton University)H-Index: 41
view all 3 authors...
We show how the central equality of scattering theory, the definition of the \mathbb{T}operator, can be used to generate hierarchies of mean-field constraints that act as natural complements to the standard electromagnetic design problem of optimizing some objective with respect to structural degrees of freedom. Proof-of-concept application to the problem of maximizing radiative Purcell enhancement for a dipolar current source in the vicinity of a structured medium, an effect central to many ...
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#2Sean MoleskyH-Index: 17
Last. Alejandro W. RodriguezH-Index: 41
view all 4 authors...
Recent experimental advances probing coherent phonon and electron transport in nanoscale devices at contact have motivated theoretical channel-based analyses of conduction based on the nonequilibrium Green's function formalism. The transmission through each channel has been known to be bounded above by unity, yet actual transmissions in typical systems often fall far below these limits. Building upon recently derived radiative heat transfer limits and a unified formalism characterizing heat tran...
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