N. D. Lanzillotti‐Kimura
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View article: Structural and nanoacoustic characterization of Co/Pt ferromagnetic superlattices
Structural and nanoacoustic characterization of Co/Pt ferromagnetic superlattices Open
Superlattices (SLs) with spatially modulated elastic properties-particularly those based on III–V semiconductors-have emerged as key platforms for reaching the ultrahigh-frequency (GHz–THz) regime in nanoacoustic devices. The exploration o…
View article: A self-assembled two-dimensional hypersonic phononic insulator
A self-assembled two-dimensional hypersonic phononic insulator Open
The coupling between the electromagnetic field and the motional degrees of freedom of a nanoscale object offers an interesting control-knob for light–matter interaction. However, this interaction is rather weak so, in general, a precise co…
View article: Towards Environmentally Responsive Hypersound Materials
Towards Environmentally Responsive Hypersound Materials Open
The engineering of acoustic phonons in the gigahertz (GHz) range holds significant potential for technological breakthroughs in areas such as data processing, sensing and quantum communication. Novel approaches for nanophononic resonators …
View article: Structural, magnetic, and nanoacoustic characterization of Co/Pt superlattices
Structural, magnetic, and nanoacoustic characterization of Co/Pt superlattices Open
Superlattices presenting a spatial modulation of the elastic properties appear as a main tool to reach the THz regime in nanoacoustic devices. The exploration of alternative materials with multifunctional properties remains a fertile domai…
View article: Coupled acoustoplasmonic resonators: the role of geometrical symmetries
Coupled acoustoplasmonic resonators: the role of geometrical symmetries Open
Acoustoplasmonic resonators, such as nanobars and crosses, are efficient acousto-optical transducers. The excitation of mechanical modes in these structures strongly depends on the spatial profile of the eigenmodes of the resonator. Using …
View article: Polarization-controlled Brillouin scattering in elliptical optophononic resonators
Polarization-controlled Brillouin scattering in elliptical optophononic resonators Open
The fast-growing development of optomechanical applications has motivated advancements in Brillouin scattering research. In particular, the study of high-frequency acoustic phonons at the nanoscale is interesting due to the large range of …
View article: Enhancing stimulated Brillouin scattering in suspended silicon waveguides through subwavelength nanostructuration [Invited]
Enhancing stimulated Brillouin scattering in suspended silicon waveguides through subwavelength nanostructuration [Invited] Open
Brillouin optomechanics is playing a key role in the development of groundbreaking devices and novel functionalities in integrated silicon photonics, such as narrow linewidth filtering and lasers, tunable frequency, non-reciprocity, etc. M…
View article: Coupled acoustoplasmonic resonators: the role of geometrical symmetries
Coupled acoustoplasmonic resonators: the role of geometrical symmetries Open
Acoustoplasmonic resonators, such as nanobars and crosses, are efficient acousto-optical transducers. The excitation of mechanical modes in these structures strongly depends on the spatial profile of the eigenmodes of the resonator. Using …
View article: Photonic and Nanomechanical Modes in Acoustoplasmonic Toroidal Nanopropellers
Photonic and Nanomechanical Modes in Acoustoplasmonic Toroidal Nanopropellers Open
Non-conventional resonances, both acoustic and photonic, are found in metallic particles with a toroidal nanopropeller geometry, which is generated by sweeping a three-lobed 2D shape along a spiral with twisting angle α. For both optical a…
View article: Elliptical micropillars for efficient generation and detection of coherent acoustic phonons
Elliptical micropillars for efficient generation and detection of coherent acoustic phonons Open
Coherent acoustic phonon generation and detection assisted by optical resonances are at the core of efficient optophononic transduction processes. However, when one is dealing with a single optical resonance, the optimum generation and det…
View article: Interference of ultrahigh frequency acoustic phonons from distant quasi-continuous sources
Interference of ultrahigh frequency acoustic phonons from distant quasi-continuous sources Open
The generation of propagating acoustic waves is essential for telecommunication applications, quantum technologies, and sensing. Up to now, the electrical generation has been at the core of most implementations, but is technologically limi…
View article: Polarization-controlled Brillouin scattering in elliptical optophononic resonators
Polarization-controlled Brillouin scattering in elliptical optophononic resonators Open
The fast-growing development of optomechanical applications has motivated advancements in Brillouin scattering research. In particular, the study of high frequency acoustic phonons at the nanoscale is interesting due to large range of inte…
View article: Photonic and phononic modes in acoustoplasmonic toroidal nanopropellers
Photonic and phononic modes in acoustoplasmonic toroidal nanopropellers Open
Non-conventional resonances, both acoustic and photonic, are found in metallic particles with a toroidal nanopropeller geometry that is generated by sweeping a three-lobed 2D-shape along a spiral with twisting angle, α. For both optical an…
View article: Photonic and phononic modes in acoustoplasmonic toroidal nanopropellers
Photonic and phononic modes in acoustoplasmonic toroidal nanopropellers Open
Non-conventional resonances, both acoustic and photonic, are found in metallic particles with a toroidal nanopropeller geometry that is generated by sweeping a three-lobed 2D-shape along a spiral with twisting angle, $α$. For both optical …
View article: Effects of top layer inhomogeneities on the performance of Fabry-Perot cavities and open resonators based on distributed Bragg reflectors
Effects of top layer inhomogeneities on the performance of Fabry-Perot cavities and open resonators based on distributed Bragg reflectors Open
International audience
View article: Phonon dynamics in novel materials and hybrid structures
Phonon dynamics in novel materials and hybrid structures Open
International audience
View article: High-order topological states using alignment of different bandgaps in 1D superlattices
High-order topological states using alignment of different bandgaps in 1D superlattices Open
International audience
View article: Optomechanical Coupling Optimization in Engineered Nanocavities
Optomechanical Coupling Optimization in Engineered Nanocavities Open
In optomechanics, the interaction between light and matter is enhanced by engineering cavities where the electromagnetic field and the mechanical displacement are confined simultaneously within the same volume. This leads to a wide range o…
View article: Mesoporous-based responsive acoustic resonators operating in the GHz range
Mesoporous-based responsive acoustic resonators operating in the GHz range Open
View article: Optimal filtering of polarisation-controlled Brillouin scattering in elliptical optophononic resonators
Optimal filtering of polarisation-controlled Brillouin scattering in elliptical optophononic resonators Open
International audience
View article: Design of responsive mesoporous-based open-cavity acoustic resonators operating in the GHz range
Design of responsive mesoporous-based open-cavity acoustic resonators operating in the GHz range Open
View article: Enhanced efficiency of coherent acoustic phonon generation and detection using elliptical micropillars
Enhanced efficiency of coherent acoustic phonon generation and detection using elliptical micropillars Open
International audience
View article: Coherent acoustic phonon transport in optophononic waveguides
Coherent acoustic phonon transport in optophononic waveguides Open
International audience
View article: Stimulated Forward Brillouin Scattering in Subwavelength Silicon Membranes
Stimulated Forward Brillouin Scattering in Subwavelength Silicon Membranes Open
Brillouin scattering enables efficient and coherent conversion between optical photons and gigahertz-frequency phonons. Integrated circuits that harness this nonlinear interaction have immense potential for signal processing, quantum trans…
View article: Topological optical and phononic interface mode by simultaneous band inversion
Topological optical and phononic interface mode by simultaneous band inversion Open
Interface modes have been widely explored in the field of electronics, optics, acoustics and nanophononics. One strategy to generate them is band inversion in one-dimensional superlattices. Most realizations of this type of topological sta…
View article: Design of cost-effective environment-responsive nanoacoustic devices based on mesoporous thin films
Design of cost-effective environment-responsive nanoacoustic devices based on mesoporous thin films Open
Gigahertz acoustic resonators have the potential to advance data processing and quantum communication. However, they are expensive and lack responsiveness to external stimuli, limiting their use in sensing applications. In contrast, low-co…
View article: Topological nanophononic interface states using high-order bandgaps in the one-dimensional Su-Schrieffer-Heeger model
Topological nanophononic interface states using high-order bandgaps in the one-dimensional Su-Schrieffer-Heeger model Open
International audience
View article: Elliptical micropillars for efficient generation and detection of coherent acoustic phonons
Elliptical micropillars for efficient generation and detection of coherent acoustic phonons Open
Coherent acoustic phonon generation and detection assisted by optical resonances are at the core of efficient optophononic transduction processes. However, when dealing with a single optical resonance, the optimum generation and detection …
View article: Effects of surface roughness and top layer thickness on the performance of Fabry-Perot cavities and responsive open resonators based on distributed Bragg reflectors
Effects of surface roughness and top layer thickness on the performance of Fabry-Perot cavities and responsive open resonators based on distributed Bragg reflectors Open
Optical and acoustic resonators based on distributed Bragg reflectors (DBRs) hold significant potential across various domains, from lasers to quantum technologies. In ideal conditions with perfectly smooth interfaces and surfaces, the DBR…
View article: Design of Cost-Effective Nanoacoustic Devices based on Mesoporous Thin Films
Design of Cost-Effective Nanoacoustic Devices based on Mesoporous Thin Films Open
Gigahertz acoustic resonators have the potential to advance data processing and quantum communication. However, they are expensive and lack responsiveness to external stimuli, limiting their use in sensing applications. In contrast, low-co…