Gyroscopic behavior exhibited by the optical Kerr effect in bimetallic Au–Pt nanoparticles suspended in ethanol

Fernández-Valdés, D.; Torres-Torres, C.; Martínez-González, Claudia Lizbeth; Trejo-Valdéz, M.; Hernández-Gómez, Luis Héctor; Torres-Martínez, R.

doi:10.1007/s11051-016-3510-2

Cited by 11 publications

(7 citation statements)

References 36 publications

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“…Bimetallic Au-Pt NPs suspended in ethanol were prepared by a previously described sol-gel method [ 35 ]. Titanium i-propoxyde [Ti(OC 3 H 7 ) 4 ] (Sigma-Aldrich, Mexico City, Mexico) was used as a precursor with a concentration C = 0.05 mol/L, pH = 1.25, together with water/alkoxide (Sigma-Aldrich) with a molar ratio rw = 0.8.…”

Section: Methodsmentioning

confidence: 99%

Acousto-Plasmonic Sensing Assisted by Nonlinear Optical Interactions in Bimetallic Au-Pt Nanoparticles

Hurtado-Aviles

Torres²,

Trejo-Valdéz

et al. 2017

Micromachines

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A strong influence of mechanical action in nonlinear optical transmittance experiments with bimetallic nanoparticles integrated by gold and platinum was observed. The nanostructured samples were synthesized by a sol-gel method and contained in an ethanol suspension. UV-VIS spectroscopy evaluations, Transmission electron microscopy studies and input-output laser experiments were characterized. A two-photon absorption effect was induced by nanosecond pulses at 532 nm wavelength with an important contribution from the plasmonic response of the nanomaterials. All-optical identification of acoustical waves was remarkably improved by optical nonlinearities. High sensitivity for instrumentation of mechano-optical signals sensing particular fluids was demonstrated by using a variable carbon dioxide incorporation to the system.

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Section: Methodsmentioning

confidence: 99%

Acousto-Plasmonic Sensing Assisted by Nonlinear Optical Interactions in Bimetallic Au-Pt Nanoparticles

Hurtado-Aviles

Torres²,

Trejo-Valdéz

et al. 2017

Micromachines

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“…These measurements represent experimental data acquired 10 different times in different regions of similar samples systematically studied. Gyroscopic behavior of the NPs seems to modulate almost uniformly the UV-vis spectra of the sample as it has been previously demonstrated [53]. In this case, the change in the linear absorption is due to a modification in the plasmonic response of the bimetallic sample.…”

Section: Resultsmentioning

confidence: 54%

Ultrasonic Influence on Plasmonic Effects Exhibited by Photoactive Bimetallic Au-Pt Nanoparticles Suspended in Ethanol

Hurtado-Aviles

Torres²,

Trejo-Valdéz

et al. 2019

Materials

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The optical behavior exhibited by bimetallic nanoparticles was analyzed by the influence of ultrasonic and nonlinear optical waves in propagation through the samples contained in an ethanol suspension. The Au-Pt nanoparticles were prepared by a sol-gel method. Optical characterization recorded by UV-vis spectrophotometer shows two absorption peaks correlated to the synergistic effects of the bimetallic alloy. The structure and nanocrystalline nature of the samples were confirmed by Scanning Transmission Electron Microscopy with X-ray energy dispersive spectroscopy evaluations. The absorption of light associated with Surface Plasmon Resonance phenomena in the samples was modified by the dynamic influence of ultrasonic effects during the propagation of optical signals promoting nonlinear absorption and nonlinear refraction. The third-order nonlinear optical response of the nanoparticles dispersed in the ethanol-based fluid was explored by nanosecond pulses at 532 nm. The propagation of high-frequency sound waves through a nanofluid generates a destabilization in the distribution of the nanoparticles, avoiding possible agglomerations. Besides, the influence of mechanical perturbation, the container plays a major role in the resonance and attenuation effects. Ultrasound interactions together to nonlinear optical phenomena in nanofluids is a promising alternative field for a wide of applications for modulating quantum signals, sensors and acousto-optic devices.

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“…Through systematic changes in the experimental conditions for the rotation of the sample in the two-wave mixing experiment, we were able to notice important variations in the | (3) | value estimated to decrease from 10 −8 esu to 10 −9 esu by the effect of the rotation of the sample. We take into account a random participation of Au or Pt in the rotating bimetallic NPs, as it has been previously demonstrated for the gyroscopic behavior of free-rotating bimetallic samples [19]. Since the laser wavelength employed for the experiments corresponds to a near-resonance wavelength for Au, in contrast to a far-resonance wavelength for Pt, these results can be explained as a consequence of a modification in the contributions associated with the different nonlinear optical phenomena involved in the light-matter interactions.…”

Section: Resultsmentioning

confidence: 99%

“…The propagation of the optical beams in the vectorial twowave mixing configuration was approximated by using the finite-differences method. The mathematical description of the transmitted beams can be numerically solved by using the wave equation [19]:…”

Section: Sample Synthesismentioning

confidence: 99%

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Nonlinear Mechanooptical Transmittance Controlled by a Rotating TiO₂ Thin Solid Film with Embedded Bimetallic Au-Pt Nanoparticles

Piña-Díaz¹,

Trejo-Valdéz²,

Morales-Bonilla³

et al. 2017

Journal of Nanomaterials

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The modification in the third-order nonlinear optical behavior exhibited by a titanium dioxide thin solid film with embedded Gold-Platinum nanoparticles was induced by nanosecond optical pulses. A Nd:YAG laser system was employed for the experiments explored by a vectorial two-wave mixing method with the sample in rotation. The nanostructures were prepared by a sol-gel technique. Transmission Electron Microscopy studies and ultraviolet-optical spectroscopy measurements were undertaken. The evolution of the optical transmittance exhibited by the sample in rotation controlled by a servomechanism was observed. Potential applications for developing mechanooptical functions based on third-order optical nonlinearities were contemplated.

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Gyroscopic behavior exhibited by the optical Kerr effect in bimetallic Au–Pt nanoparticles suspended in ethanol

Cited by 11 publications

References 36 publications

Acousto-Plasmonic Sensing Assisted by Nonlinear Optical Interactions in Bimetallic Au-Pt Nanoparticles

Acousto-Plasmonic Sensing Assisted by Nonlinear Optical Interactions in Bimetallic Au-Pt Nanoparticles

Ultrasonic Influence on Plasmonic Effects Exhibited by Photoactive Bimetallic Au-Pt Nanoparticles Suspended in Ethanol

Nonlinear Mechanooptical Transmittance Controlled by a Rotating TiO₂ Thin Solid Film with Embedded Bimetallic Au-Pt Nanoparticles

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Gyroscopic behavior exhibited by the optical Kerr effect in bimetallic Au–Pt nanoparticles suspended in ethanol

Cited by 11 publications

References 36 publications

Acousto-Plasmonic Sensing Assisted by Nonlinear Optical Interactions in Bimetallic Au-Pt Nanoparticles

Acousto-Plasmonic Sensing Assisted by Nonlinear Optical Interactions in Bimetallic Au-Pt Nanoparticles

Ultrasonic Influence on Plasmonic Effects Exhibited by Photoactive Bimetallic Au-Pt Nanoparticles Suspended in Ethanol

Nonlinear Mechanooptical Transmittance Controlled by a Rotating TiO2 Thin Solid Film with Embedded Bimetallic Au-Pt Nanoparticles

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Nonlinear Mechanooptical Transmittance Controlled by a Rotating TiO₂ Thin Solid Film with Embedded Bimetallic Au-Pt Nanoparticles