413 citations · 1.3k across the 29 of their papers we have counts for
29 papers
Milliwatt-level UV generation using sidewall poled lithium niobate
C. A. A. Franken, S. S. Ghosh, C. C. Rodrigues +8
Integrated coherent sources of ultra-violet (UV) light are essential for a wide range of applications, from ion-based quantum computing and optical clocks to gas sensing and micros…
Optomechanical microgear cavity
Roberto O. Zurita, Cauê M. Kersul, Nick J. Schilder +2
We introduce a novel optomechanical microgear cavity for both optical and mechanical isotropic materials, featuring a single etch configuration. The design leverages a conjunction…
Cross-Polarized Stimulated Brillouin Scattering in Lithium Niobate Waveguides
Caique C. Rodrigues, Nick J. Schilder, Roberto O. Zurita +7
We report on the experimental demonstration of cross-polarization backward stimulated Brillouin scattering (BSBS) in lithium niobate on insulator (LNOI) waveguides. Performing pola…
Synchronization of silicon thermal-free-carrier oscillators
Gustavo de O. Luiz, Caique C. Rodrigues, Thiago P. Mayer Alegre +1
Recent exploration of collective phenomena in oscillator arrays has highlighted its potential for accessing a range of physical phenomena, from fundamental quantum many-body dynami…
Stimulated Brillouin scattering by surface acoustic waves in lithium niobate waveguides
Caique C. Rodrigues, Roberto O. Zurita, Thiago P. M. Alegre +1
We numerically demonstrate that Lithium Niobate on Insulator (LNOI) waveguides may support confined short-wavelength surface acoustic waves that interact strongly with optical fiel…
Third-harmonic generation in silica wedge resonators
Jorge H. Soares, Laís Fujii Dos Santos, Felipe G. S. Santos +4
Whispering-gallery-mode microcavities are known to have high optical quality factor, making them suitable for nonlinear optical interactions. Here, third-harmonic generation is obs…
Dissipative Optomechanics in High-Frequency Nanomechanical Resonators
André G. Primo, Pedro V. Pinho, Rodrigo Benevides +3
The coherent transduction of information between microwave and optical domains is a fundamental building block for future quantum networks. A promising way to bridge these widely d…
Silicon anisotropy in a bi-dimensional optomechanical cavity
Cauê M. Kersul, Rodrigo Benevides, Flávio Moraes +5
In this work, we study the effects of mechanical anisotropy in a 2D optomechanical crystal geometry. We fabricate and measure devices with different orientations, showing the depen…
Optimization of diamond optomechanical crystal cavities
Flavio Moraes, Gabriel H. M. de Aguiar, Emerson G. de Melo +2
Due to recent development of growing and processing techniques for high-quality single crystal diamond, the large scale production of diamond optomechanical crystal cavities become…
Enantioselective optical forces in gain-functionalized single core-shell chiral nanoparticles
R. Ali, F. A. Pinheiro, R. S. Dutra +2
We propose a gain-assisted enantioselective scheme in dye-doped chiral particles, demonstrating optical pulling and pushing forces that can be tuned using externally controllable p…
Optomechanical Synchronization across Multi-Octaves Frequency Spans
Caique C. Rodrigues, Cauê M. Kersul, André G. Primo +3
Experimental exploration of synchronization in scalable oscillator micro systems has unfolded a deeper understanding of networks, collective phenomena, and signal processing. Cavit…
Intermodal Brillouin scattering in solid-core photonic crystal fibers
Paulo F. Jarschel, Erick Lamilla, Yovanny A. V. Espinel +5
We investigate intermodal forward Brillouin scattering in a solid-core PCF, demonstrating efficient power conversion between the HE11 and HE21 modes, with a maximum gain coefficien…
Designing of strongly confined short-wave Brillouin phonons in silicon waveguide periodic lattices
Roberto O. Zurita, Gustavo S. Wiederhecker, Thiago P. Mayer Alegre
We propose a feasible waveguide design optimized for harnessing Stimulated Brillouin Scattering with long-lived phonons. The design consists of a fully suspended ridge waveguide su…
Alumina coating for dispersion management in ultra-high Q microresonators
Marvyn Inga, Laís Fujii, José Maria C. da Silva Filho +5
Silica optical microspheres often exhibit ultra-high quality factors, yet, their group velocity dispersion, which is crucial for nonlinear optics applications, can only be coarsely…
Accurate modeling and characterization of photothermal forces in optomechanics
André G. Primo, Cauê M. Kersul, Rodrigo Benevides +6
Photothermal effects have been pointed out as prominent sources of forces in optomechanical systems, competing with the standard radiation pressure interactions. In this Article, w…
High-Frequency GaAs Optomechanical Bullseye Resonator
N. C. Carvalho, R. Benevides, M. Ménard +3
The integration of optomechanics and optoelectronics in a single device opens new possibilities for developing information technologies and exploring fundamental phenomena. Gallium…
Quasinormal-mode perturbation theory for dissipative and dispersive optomechanics
André G. Primo, Natália C. Carvalho, Cauê M. Kersul +3
Despite the several novel features arising from the dissipative optomechanical coupling, such effect remains vastly unexplored due to the lack of a simple formalism that captures n…
Ar/Cl etching of GaAs optomechanical microdisks fabricated with positive electroresist
Rodrigo Benevides, Michaël Ménard, Gustavo S. Wiederhecker +1
A method to fabricate GaAs microcavities using only a soft mask with an electrolithographic pattern in an inductively coupled plasma etching is presented. A careful characterizatio…
Ultrahigh-Q optomechanical crystals cavities fabricated on a CMOS foundry
Rodrigo Benevides, Felipe G. S. Santos, Gustavo O. Luiz +2
Photonic crystals use periodic structures to create forbidden frequency regions for optical wave propagation, that allow for the creation and integration of complex optical functio…
Efficient anchor loss suppression in coupled near-field optomechanical resonators
Gustavo O. Luiz, Felipe G. S. Santos, Rodrigo S. Benevides +3
Elastic dissipation through radiation towards the substrate is a major loss channel in micro- and nanomechanical resonators. Engineering the coupling of these resonators with optic…
Brillouin Optomechanics in Coupled Silicon Microcavities
Yovanny A. V. Espinel, Felipe G. S. Santos, Gustavo O. Luiz +2
The simultaneous control of optical and mechanical waves has enabled a range of fundamental and technological breakthroughs, from the demonstration of ultra-stable frequency refere…
Modeling quasi-dark states with Temporal Coupled-Mode Theory
Mario C. M. M. Souza, Guilherme F. M. Rezende, Luis A. M. Barea +2
Coupled resonators are commonly used to achieve tailored spectral responses and allow novel functionalities in a broad range of applications, from optical modulation and filtering…
Spectral Engineering with Coupled Microcavities: Active Control of Resonant Mode-Splitting
Mario C. M. M. Souza, Guilherme Rezende, Luis A. M. Barea +3
Optical mode-splitting is an efficient tool to shape and fine-tune the spectral response of resonant nanophotonic devices. The active control of mode-splitting, however, is either…
Active optomechanics through relaxation oscillations
Debora Princepe, Gustavo Wiederhecker, Newton Frateschi
We propose an optomechanical laser based on III-V compounds which exhibits self-pulsation in the presence of a dissipative optomechanical coupling. In such a laser cavity, radiatio…