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Listar por palabra clave "Optomechanics"

Mostrando ítems 1-14 de 14

A one-dimensional optomechanical crystal with a complete phononic band gap

Gomis Bresco, Jordi; Navarro Urríos, Daniel; Oudich, M.; El-Jallal, S.; Griol Barres, Amadeu; Puerto Garcia, Daniel; Chavez, E.; Pennec, Y.; Djafari-Rouhani, B.; Alzina, F.; Martínez Abietar, Alejandro José; Sotomayor Torres, C.M. (Nature Publishing Group, 2014-07)

[EN] Recent years have witnessed the boom of cavity optomechanics, which exploits the confinement and coupling of optical and mechanical waves at the nanoscale. Among their physical implementations, optomechanical (OM) ...
A self-stabilized coherent phonon source driven by optical forces

Navarro Urríos, Daniel; Capuj, N. E.; Gomis-Bresco, J.; Alzina, F.; Pitanti, A.; Griol Barres, Amadeu; Martínez Abietar, Alejandro José; Sotomayor Torres, C. M. (Nature Publishing Group, 2015-10-27)

[EN] We report a novel injection scheme that allows for phonon lasing in a one-dimensional optomechanical photonic crystal, in a sideband unresolved regime and with cooperativity values as low as 10-2. It extracts energy ...
Analysis of optomechanical coupling in two-dimensional square lattice phoxonic crystal slab cavities

El-Jallal, Said; Oudich, Mourad; Pennec, Yan; Djafari-Rouhani, Bahram; Laude, Vincent; Beugnot, Jean-Charles; Martínez Abietar, Alejandro José; Escalante Fernández, José María; Makhoute, Abdelkader (American Physical Society, 2013)

[EN] We theoretically investigate phonon-photon interaction in cavities created in a phoxonic crystal slab constituted by a two-dimensional (2D) square array of holes in a silicon membrane. The structure without defects ...
Design of single-mode waveguides for enhanced light-sound interaction in honeycomb-lattice silicon slabs

Escalante Fernández, José María; Martínez Abietar, Alejandro José; Laude, Vincent (American Institute of Physics (AIP), 2014-02-14)

We present the design of two waveguides (ladder and slot-ladder waveguides) implemented in a silicon honeycomb photonic-phononic crystal slab, which can support slow electromagnetic and elastic guided modes simultaneously. ...
Dynamical back-action at 5.5 GHz in a corrugated optomechanical beam

Navarro-Urrios, D.; Gomis-Bresco, J.; El-Jallal, S.; Oudich, M.; Pitanti, A.; Capuj, N.; Tredicucci, A.; Alzina, F.; Griol Barres, Amadeu; Pennec, Y.; Djafari-Rouhani, B.; Martínez Abietar, Alejandro José; Sotomayor Torres, C.M. (American Institute of Physics, 2014-12)

[EN] We report on the optomechanical properties of a breathing mechanical mode oscillating at 5.5 GHz in a 1D corrugated Si nanobeam. This mode has an experimental single-particle optomechanical coupling rate of vertical ...
Emerging topics in nanophononics and elastic, acoustic, and mechanical metamaterials: an overview

Krushynska, Anastasiia O.; Torrent, Daniel; Aragón, Alejandro M.; Ardito, Raffaele; Bilal, Osama R.; Bonello, Bernard; Bosia, Federico; Chen, Yi; Christensen, Johan; Colombi, Andrea; Cummer, Steven A.; Djafari-Rouhani, Bahram; Fraternali, Fernando; Galich, Pavel I.; García, Pedro David; Groby, Jean-Philippe; Jimenez, Noe; Picó Vila, Rubén (Walter de Gruyter GmbH, 2023-02-23)

[EN] This broad review summarizes recent advances and "hot " research topics in nanophononics and elastic, acoustic, and mechanical metamaterials based on results presented by the authors at the EUROMECH 610 Colloquium ...
Honeycomb Photonic Crystal Waveguides in a Suspended Silicon Slab

Puerto Garcia, Daniel; Griol Barres, Amadeu; Escalante Fernández, José María; Pennec, Yan; Djafari-Rouhani, Bahram; Beugnot, Jean-Charles; Laude, Vincent; Martínez Abietar, Alejandro José (Institute of Electrical and Electronics Engineers (IEEE), 2012-11-15)

[EN] We report experimental evidence of light guiding at telecommunication wavelengths along line-defect honeycomb-lattice photonic crystal waveguides created in suspended silicon slabs. Numerical results show that the ...
Injection locking in an optomechanical coherent phonon source

Arregui, Guillermo; Colombano, Martín F.; Maire, Jeremie; Pitanti, Alessandro; Capuj, Néstor E.; Griol Barres, Amadeu; Martínez, Alejandro; Sotomayor-Torres, Clivia M.; Navarro-Urrios, Daniel (Walter de Gruyter GmbH, 2021-04)

[EN] Spontaneous locking of the phase of a coherent phonon source to an external reference is demonstrated in a deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by the ...
Nonlinear dynamics and chaos in an optomechanical beam

Navarro-Urrios, Daniel; Capuj, Nestor E.; Colombano, Martín F.; García, P. D.; Sledzinska, Marianna; Alzina, Francesc; Griol Barres, Amadeu; Martínez Abietar, Alejandro José; Sotomayor-Torres, Clivia (2017)

[EN] Optical nonlinearities, such as thermo-optic mechanisms and free-carrier dispersion, are often considered unwelcome effects in silicon-based resonators and, more specifically, optomechanical cavities, since they affect, ...
Optical and mechanical mode tuning in an optomechanical crystal with light-induced thermal effects

Navarro-Urrios, D.; Gomis-Bresco, J.; Capuj, N. E.; Alzina, F.; Griol Barres, Amadeu; Puerto Garcia, Daniel; Martínez Abietar, Alejandro José; Sotomayor-Torres, C. M. (American Institute of Physics (AIP), 2014-09-07)

[EN] We report on the modification of the optical and mechanical properties of a silicon 1D optomechanical crystal cavity due to thermo-optic effects in a high phonon/photon population regime. The cavity heats up due to ...
Optical Drills by Dynamic High-Order Bessel Beam Mixing

Kontenis, Gabrielius; Gailevicius, Darius; Jimenez, Noe; Staliunas, Kestutis (American Physical Society, 2022-03-25)

[EN] One of the key trends in laser material processing is the usage of structured laser beams. Collimated and focused Gaussian beams are the most common tools; however, more exotic beams can be beneficial too. For instance, ...
Optomechanic interaction in a corrugated phoxonic nanobeam cavity

Oudich, Mourad; El-Jalla, Said; Pennec, Yan; Djafari-Rouhani, Bahram; Gomis Bresco, Jordi; Navarro-Urrios, Daniel; Sotomayor Torres, Clivia M.; Martínez Abietar, Alejandro José; Makhoute, Abdelkader (American Physical Society, 2014-06-18)

[EN] The interaction between phonons and photons is investigated theoretically in a phoxonic cavity inside a corrugated nanobeam waveguide presenting band gaps for both electromagnetic and elastic waves. The structure is ...
Phonons Manipulation in Silicon Chips Using Cavity Optomechanics

Mercadé Morales, Laura (Universitat Politècnica de València, 2021-07-26)

[ES] La optomecánica de cavidades se ocupa de la interacción entre la luz y la materia a través del efecto de presión de radiación cuando las ondas ópticas y mecánicas implicadas están confinadas en una cavidad. En estos ...
Thermal Properties of Nanocrystalline Silicon Nanobeams

Maire, Jeremie; Chavez-Angel, Emigdio; Arregui, Guillermo; Colombano, M. F.; Capuj, Nestor; Griol Barres, Amadeu; Martínez, Alejandro; Navarro-Urrios, Daniel; Ahopelto, J.; Sotomayor-Torres, Clivia (John Wiley & Sons, 2022-01)

[EN] Controlling thermal energy transfer at the nanoscale and thermal properties has become critically important in many applications since it often limits device performance. In this study, the effects on thermal conductivity ...