396 citations · 994 across the 11 of their papers we have counts for
11 papers
Freeform Diffractive Metagrating Design Based on Generative Adversarial Networks
Jiaqi Jiang, David Sell, Stephan Hoyer +3
A key challenge in metasurface design is the development of algorithms that can effectively and efficiently produce high performance devices. Design methods based on iterative opti…
Freeform metagratings based on complex light scattering dynamics for extreme, high efficiency beam steering
Jianji Yang, David Sell, Jonathan A. Fan
Conventional phased-array metasurfaces utilize resonant nanoparticles or nanowaveguides to specify spatially-dependent amplitude and phase responses to light. In nearly all these i…
Implementing structural slow light on short length scales: the photonic speed-bump
Remi Faggiani, Jianji Yang, Richard Hostein +1
One-dimensional (1D) infinite periodic systems exhibit vanishing group velocity and diverging density of states (DOS) near band edges. However, in practice, systems have finite siz…
Light emission in nanogaps: overcoming quenching
Jianji Yang, Rémi Faggiani, Philippe Lalanne
Very large spontaneous-emission-rate enhancements (~1000) are obtained for quantum emitters coupled with tiny plasmonic resonance, especially when emitters are placed in the mouth…
Quenching, plasmonic and radiative decays in nanogap emitting devices
Remi Faggiani, Jianji Yang, Philippe Lalanne
By placing a quantum emitter in the mouths of nanogaps consisting of two metal nanoparticles nearly into contact, significant increases in emission rate are obtained. This mechanis…
Near-to-far field transformations for radiative and guided waves
Jianji Yang, Jean-Paul Hugonin, Philippe Lalanne
Light emitters or scatterers embedded in stratified media may couple energy to both free space modes and guided modes of the stratified structure. For a comprehensive analysis, it…
Interaction between atoms and slow light: a waveguide-design study
Xiaorun Zang, Jianji Yang, Rémi Faggiani +8
The emerging field of on-chip integration of nanophotonic devices and cold atoms offers extremely-strong and pure light-matter interaction schemes, which may have profound impact o…
Simple analytical expression for the peak-frequency shifts of plasmonic resonances for sensing
Jianji Yang, Harald Giessen, Philippe Lalanne
We derive a closed-form expression that accurately predicts the peak frequency-shift and broadening induced by tiny perturbations of plasmonic nanoresonators without critically rel…
Theory of fishnet negative-index optical metamaterials
J. Yang, C. Sauvan, H. T. Liu +1
We theoretically study fishnet metamaterials at optical frequencies. In contrast to earlier works, we provide a microscopic description by tracking the transversal and longitudinal…
Metal-coated nano-cylinder cavity for broadband nonclassical light emission
I. Maksymov, Mondher Besbes, Jean-Paul Hugonin +5
A novel metal-coated nanocylinder-cavity architecture fully compatible with III-V GaInAs technology and benefiting from a broad spectral range enhancement of the localdensity- of-s…
Decomposing the scattered field of two-dimensional metaatoms into multipole contributions
J. Petschulat, J. Yang, C. Menzel +6
We introduce a technique to decompose the scattered near field of two-dimensional arbitrary metaatoms into its multipole contributions. To this end we expand the scattered field up…