189 citations · 623 across the 17 of their papers we have counts for
17 papers
The critical role of substrates in mitigating the power-efficiency trade-off in near-field thermophotovoltaics
Kartika N. Nimje, Julien Legendre, Michela F. Picardi +2
Near-field thermophotovoltaic systems can achieve ultra-high power densities, however, this often comes at the cost of reduced efficiency. We show that this power-efficiency trade-…
Fundamental limitations of thermoradiative energy conversion
Maxime Giteau, Michela F. Picardi, Georgia T. Papadakis
Understanding the fundamental limits of various energy conversion approaches is essential for assessing their efficiency and power output. In this work, we derive general performan…
Bulk-to-surface coupling of spatiotemporal vortices
Francisco J. Rodríguez-Fortuño, Michela F. Picardi, Konstantin Y. Bliokh
We consider the coupling of bulk space-time-structured waves, such as spatiotemporal vortex pulses (STVPs), to surface waves, such as surface plasmon-polaritons (SPPs). For resonan…
Mid-IR chirality and chiral thermal emission through twisting
Michael T. Enders, Mitradeep Sarkar, Evgenia Klironomou +4
Chirality in the mid-infrared spectral range plays a crucial role across physical, chemical, and biological sciences, yet sources of chiral infrared light do not currently exist. T…
Nonreciprocity in transmission mode with planar structures for arbitrarily polarized light
Michela F. Picardi, Vera I. Moerbeek, Mariano Pascale +1
Approaching thermodynamic limits in light harvesting requires enabling nonreciprocal thermal emission. The majority of previously reported nonreciprocal thermal emitters operate in…
Thermodynamic performance bounds for radiative heat engines
Maxime Giteau, Michela F. Picardi, Georgia T. Papadakis
Heat engines cannot generally operate at maximum power and efficiency, imposing a trade-off between the two. Here, we highlight the exact nature of this trade-off for engines that…
Roadmap on structured waves
K. Y. Bliokh, E. Karimi, M. J. Padgett +47
Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave.…
Dynamic modulation of thermal emission -- a Tutorial
Michela Florinda Picardi, Kartika Narayan Nimje, Georgia T. Papadakis
Thermal emission is typically associated with a blackbody at a temperature above absolute zero, which exchanges energy with its environment in the form of radiation. Blackbody ther…
Optical magnetic dipole levitation using a plasmonic surface
Jack J. Kingsley-Smith, Michela F. Picardi, Francisco J. Rodríguez-Fortuño
Optically-induced magnetic resonances in non-magnetic media have unlocked magnetic light-matter interactions and led to new technologies in many research fields. Previous proposals…
Amplitude and phase control of guided modes excitation from a single dipole source:engineering far- and near-field directionality
Michela F. Picardi, Anatoly V. Zayats, Francisco J. Rodríguez-Fortuño
The design of far-field radiation diagrams from combined electric and magnetic dipolar sources has recently found applications in nanophotonic metasurfaces that realize tailored re…
Experimental demonstration of linear and spinning Janus dipoles for polarisation and wavelength selective near-field coupling
Michela F. Picardi, Martin Neugebauer, Joerg S. Eismann +4
The electromagnetic field scattered by nano-objects contains a broad range of wave vectors and can be efficiently coupled to waveguided modes. The dominant contribution to scatteri…
Optical forces from near-field directionalities in planar structures
Jack J. Kingsley-Smith, Michela F. Picardi, Lei Wei +2
Matter manipulation with optical forces has become commonplace in a wide range of research fields and is epitomized by the optical trap. Calculations of optical forces on small ill…
Angular momenta, helicity, and other properties of dielectric-fiber and metallic-wire modes
M. F. Picardi, K. Y. Bliokh, F. J. Rodríguez-Fortuño +2
Spin and orbital angular momenta (AM) of light are well studied for free-space electromagnetic fields, even nonparaxial. One of the important applications of these concepts is the…
Directional scattering from particles under evanescent wave illumination: the role of reactive power
Lei Wei, Michela F. Picardi, Jack J. Kingsley-Smith +2
Study of photonic spin-orbital interactions, which involves control of the propagation and spatial distributions of light with the polarization of electromagnetic fields, is not on…
Janus and Huygens' dipolar sources for near-field directionality
Michela F. Picardi, Anatoly V. Zayats, Francisco J. Rodríguez-Fortuño
Controlling directionality of emission, scattering and waveguiding is an important requirement in quantum optical technology, integrated photonics and new metasurface designs, as w…
Repulsion of polarized particles from two-dimensional materials
Francisco J. Rodríguez-Fortuño, Michela F. Picardi, Anatoly V. Zayats
Repulsion of nanoparticles, molecules and atoms from surfaces can have important applications in nanomechanical devices, microfluidics, optical manipulation and atom optics. Here,…
Flat polarization-controlled cylindrical lens based on the Pancharatnam-Berry geometric phase
Bruno Piccirillo, Michela Florinda Picardi, Lorenzo Marrucci +1
The working principle of ordinary refractive lenses can be explained in terms of the space-variant optical phase retardations they introduce, which reshape the optical wavefront cu…