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Experimental Evaluation of All-Optical Up- and Down-Conversion of 3GPP 5G NR Signals using an Optomechanical Crystal Cavity Frequency Comb

Autor: Fito, Vicente, Ortiz, Raúl, Morant, Maria, Mercadé, Laura, Llorente, Roberto, Martínez, Alejandro

Optomechanical crystal cavities (OMCCs) allow the interaction between localized optical and mechanical modes through the radiation-pressure force. Driving such cavities with blue-detuned lasers relative to the optical resonance can induce a phonon la

Externí odkaz: http://arxiv.org/abs/2406.04811

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Influence of thermal effects on the optomechanical coupling rate in acousto-optic cavities

Autor: Ortiz, Raúl, Mercadé, Laura, Grau, Alberto, Navarro-Urrios, Daniel, Martínez, Alejandro

Optomechanical (OM) cavities simultaneously localize photons and phonons, thus enhancing their mutual interaction through radiation-pressure force. This acousto-optic interaction can be quantified by means of the optical frequency shift per mechanica

Externí odkaz: http://arxiv.org/abs/2401.04557

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Spectral Distortion Signatures of Step-like Inflationary Potential

Autor: Mastache, Jorge, Barrera, Wilson, Henríquez-Ortiz, Raúl

In this work, we analyze a power-law inflationary potential enhanced with a step that can introduce features in the primordial power spectrum. We focus on the computation of the Spectral Distortions (SD) induced by these features obtained from the in

Externí odkaz: http://arxiv.org/abs/2311.13737

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Spectral distortions from promising single and multifield inflationary models

Autor: Baur, Alexander, Garcia, Marcos A. G., Henriquez-Ortiz, Raul, Hernandez-Neri, Mauricio, Ramos-Sanchez, Saul

Forthcoming missions probing the absolute intensity of the CMB are expected to be able to measure spectral distortions, which are deviations from its blackbody distribution. As cosmic inflation can induce spectral distortions, these experiments offer

Externí odkaz: http://arxiv.org/abs/2310.13071

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Engineering multiple GHz mechanical modes in optomechanical crystal cavities

Autor: Mercadé, Laura, Ortiz, Raúl, Grau, Alberto, Griol, Amadeu, Navarro-Urrios, Daniel, Martínez, Alejandro

Optomechanical crystal cavities (OMCCs) are fundamental nanostructures for a wide range of phenomena and applications. Usually, optomechanical interaction in such OMCCs is limited to a single optical mode and a unique mechanical mode. In this sense,

Externí odkaz: http://arxiv.org/abs/2208.00890

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Spectral Distortions from Axion Monodromy Inflation

Autor: Henriquez-Ortiz, Raul, Mastache, Jorge, Ramos-Sanchez, Saul

With the advent of new missions to probe spectral distortions of the cosmic microwave background with unprecedented precision, the study of theoretical predictions of these signals becomes a promising avenue to test our description of the early Unive

Externí odkaz: http://arxiv.org/abs/2206.07719

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