128 citations · 468 across the 20 of their papers we have counts for
24 papers
Master-Slave synchronization of silicon optomechanical nanobeam oscillators by external feedback
David Alonso-Tomás, Nestor E. Capuj, Laura Mercadé +3
The remote synchronization of oscillators is essential for improving the performance, efficiency, and reliability of various systems and technologies, ranging from everyday telecom…
Intermodulation of optical frequency combs in a multimode optomechanical system
Ryan C. Ng, Paul Nizet, Daniel Navarro-Urrios +6
Phonons offer the possibility to connect the microwave and optical domains while being efficiently transduced with electronic and optical signals. Here, we present a multimodal opt…
Engineering multiple GHz mechanical modes in optomechanical crystal cavities
Laura Mercadé, Raúl Ortiz, Alberto Grau +3
Optomechanical crystal cavities (OMCCs) are fundamental nanostructures for a wide range of phenomena and applications. Usually, optomechanical interaction in such OMCCs is limited…
Optomechanical Modulation Spectroscopy of Bound-States-In-The-Continuum in a dielectric metasurface
S. Zanotto, G. Conte, L. C. Bellieres +5
Elusive features in photonic and electronic devices can be detected by means of advanced, time-domain spectroscopic techniques. In this letter we introduce a novel kind of modulati…
Room-temperature silicon platform for GHz-frequency nano-electro-opto-mechanical systems
D. Navarro-Urrios, M. F. Colombano, G. Arregui +7
Nano-electro-opto-mechanical systems enable the synergistic coexistence of electrical, mechanical, and optical signals on a chip to realize new functions. Most of the technology pl…
Thermal properties of nanocrystalline silicon nanobeams
Jeremie Maire, Emigdio Chavez-Angel, Guillermo Arregui +7
Controlling thermal energy transfer at the nanoscale has become critically important in many applications and thermal properties since it often limits device performance. In this w…
Optomechanical crystals for spatial sensing of submicron sized analytes
D. Navarro-Urrios, E. Kang, P. Xiao +7
Optomechanical crystal cavities have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, bacteria and viruses. In this work we demonstr…
Injection locking in an optomechanical coherent phonon source
Guillermo Arregui, Martin Facundo Colombano, Jérémie Maire +6
Spontaneous locking of the phase of a coherent phonon source to an external reference is demonstrated in an optomechanical oscillator based on a self-triggered free-carrier/tempera…
High frequency mechanical excitation of a silicon nanostring with piezoelectric aluminum nitride layers
A. Pitanti, T. Makkonen, M. F. Colombano +8
A strong trend for quantum based technologies and applications follows the avenue of combining different platforms to exploit their complementary technological and functional advan…
Microwave generation and frequency comb in a silicon optomechanical cavity with a full phononic bandgap
Laura Mercadé, Leopoldo L. Martín, Amadeu Griol +2
Cavity optomechanics has become a powerful tool to manipulate mechanical motion via optical fields. When driving an optomechanical cavity with blue-detuned laser the mechanical mot…
Properties of Nanocrystalline Silicon Probed by Optomechanics
Daniel Navarro-Urrios, Martin F. Colombano, Jeremie Maire +13
Nanocrystalline materials exhibit properties that can differ substantially from those of their single crystal counterparts. As such, they provide ways to enhance and optimise their…
Synchronization of optomechanical cavities by mechanical interaction
M. F. Colombano, G. Arregui, N. E. Capuj +7
The synchronization of coupled oscillators is a phenomenon found throughout nature. Mechanical oscillators are paradigmatic among such systems, but realising them at the nanoscale…
All-optical radiofrequency modulation of Anderson-localized modes
Guillermo Arregui, Daniel Navarro-Urrios, Nikolaos Kehagias +2
All-optical modulation of light relies on exploiting intrinsic material nonlinearities. However, this optical control is rather challenging due to the weak dependence of the refrac…
Optomechanics of chiral dielectric metasurfaces
Simone Zanotto, Alessandro Tredicucci, Daniel Navarro-Urrios +5
Electromagnetic fields coupled with mechanical degrees of freedom have recently shown exceptional and innovative applications, ultimately leading to mesoscopic optomechanical devic…
Optical modulation of coherent phonon emission in optomechanical cavities
J. Maire, N. E. Capuj, M. F. Colombano +4
Optomechanical structures are well suited to study photon-phonon interactions, and they also turn out to be potential building blocks for phononic circuits and quantum computing. I…
Nanocrystalline silicon optomechanical cavities
D. Navarro-Urrios, N. E. Capuj, J. Maire +9
Silicon on insulator photonics has offered a versatile platform for the recent development of integrated optomechanical circuits. However, there are some constraints such as the hi…
Mechanical oscillations in lasing microspheres
A. Toncelli, N. E. Capuj, B. Garrido +4
We investigate the feasibility of activating coherent mechanical oscillations in lasing microspheres by modulating the laser emission at a mechanical eigenfrequency. To this aim, 1…
Record Low Thermal Conductivity of Polycrystalline MoS2 films: Tuning the Thermal Conductivity by Grain Orientation
M. Sledzinska, R. Quey, B. Mortazavi +8
We report a record low thermal conductivity in polycrystalline MoS2 obtained by varying grain sizes and orientations in ultrathin films. By optimizing the sulphurisation parameters…
Optomechanical coupling in the Anderson-localization regime
Pedro David García, Robert Bericat-Vadell, Guillermo Arregui +4
Optomechanical crystals, purposely designed and fabricated semiconductor nanostructures, are used to enhance the coupling between the electromagnetic field and the mechanical vibra…
Nonlinear dynamics and chaos in an optomechanical beam
D. Navarro-Urrios, N. E. Capuj, M. F. Colombano +6
Optical non-linearities, such as thermo-optic effects and free-carrier-dispersion, are often considered as undesired effects in silicon-based resonators and, more specifically, opt…
Thermal noise and optomechanical features in the emission of a membrane-coupled compound cavity laser diode
Lorenzo Baldacci, Alessandro Pitanti, Luca Masini +4
We demonstrate the use of a compound optical cavity as linear displacement detector, by measuring the thermal motion of a silicon nitride suspended membrane acting as the external…
Vertical coupling of laser glass microspheres to buried silicon nitride ellipses and waveguides
Daniel Navarro-Urrios, Joan Manel Ramirez, Nestor E. Capuj +3
We demonstrate the integration of Nd3+ doped Barium-Titanium-Silicate microsphere lasers with a Silicon Nitride photonic platform. Devices with two different geometrical configurat…
Far-field characterization of the thermal dynamics in lasing microspheres
J. M. Ramirez, D. Navarro-Urrios, N. E. Capuj +4
This work reports the dynamical thermal behavior of lasing microspheres placed on a dielectric substrate while they are homogeneously heated-up by the top-pump laser used to excite…
Whispering-gallery modes and light emission from a Si-nanocrystal-based single microdisk resonator
Mher Ghulinyan, Daniel Navarro-Urrios, Alessandro Pitanti +3
We report on visible light emission from Si-nanocrystal based optically active microdisk resonators. The room temperature photoluminescence (PL) from single microdisks shows the ch…