Probing the acoustic vibrations of single metal nanoparticles by ultrashort laser pulses

Tchebotareva, Anna L.; Ruijgrok, Paul V.; Zijlstra, Peter; Orrit, Michel

doi:10.1002/lpor.200910034

Cited by 56 publications

(64 citation statements)

References 97 publications

(197 reference statements)

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“…Indeed, the generation of hypersonic waves in a variety of materials, geometries and devices, has grown to applications in different areas such as high-frequency electronics [1][2][3], biomedical science [4,5], ultrasensitive mass detection [6,7] and photoacoustic imaging [8,9]. Whereas the generation of coherent vibrations in metal nanoparticles [10][11][12][13], or in small groups of them [14,15] has been subject of active research during the last decade, their applications as local and tunable nanoresonators are still in their beginnings [8].…”

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confidence: 99%

Tailored Hypersound Generation in Single Plasmonic Nanoantennas

et al. 2016

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Ultra-short laser pulses impinging on a plasmonic nanostructure trigger a highly dynamic scenario in the interplay of electronic relaxation with lattice vibrations, which can be experimentally probed via the generation of coherent phonons. In this letter we present studies of hypersound generation in the range of a few to tens of GHz on single gold plasmonic nanoantennas, which have additionally been subjected to pre-designed mechanical constraints via silica bridges. Using these hybrid gold/silica nanoantennas, we demonstrate experimentally and via numerical simulations how mechanical constraints allow control over their vibrational mode spectrum. Degenerate pump-probe techniques with double

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confidence: 99%

Tailored Hypersound Generation in Single Plasmonic Nanoantennas

et al. 2016

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“…The use of pulsed illumination (from the femtosecond to the nanosecond range) to heat metal NPs markedly increases the range of applications of noble metal NPs. Compared to continuous‐wave (CW) illumination, a new class of effects can be triggered, such as shorter temperature and pressure variations , further temperature confinement , acoustic wave generation , vibration modes , bubble formation , NP shape modification and melting , and extreme thermodynamics conditions . In this section, we briefly discuss the thermodynamics of metal NPs under pulsed illumination and in particular the influence of parameters such as pulse duration, pulsation rate and size of the NP.…”

Section: Physics Of Plasmonic Heatingmentioning

confidence: 99%

Thermo‐plasmonics: using metallic nanostructures as nano‐sources of heat

Baffou

Quidant

2012

Laser & Photonics Reviews

1,146

1,163

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Recent years have seen a growing interest in using metal nanostructures to control temperature on the nanoscale. Under illumination at its plasmonic resonance, a metal nanoparticle features enhanced light absorption, turning it into an ideal nano-source of heat, remotely controllable using light. Such a powerful and flexible photothermal scheme is the basis of thermo-plasmonics. Here, the recent progress of this emerging and fast-growing field is reviewed. First, the physics of heat generation in metal nanoparticles is described, under both continuous and pulsed illumination. The second part is dedicated to numerical and experimental methods that have been developed to further understand and engineer plasmonic-assisted heating processes on the nanoscale. Finally, some of the most recent applications based on the heat generated by gold nanoparticles are surveyed, namely photothermal cancer therapy, nanosurgery, drug delivery, photothermal imaging, protein tracking, photoacoustic imaging, nano-chemistry and optofluidics.

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“…16 Several experimental and numerical approaches aimed at studying the internal processes of heat generation under pulsed illumination and the subsequent effects observed in the surrounding medium, e.g. temperature and pressure variations, [17][18][19] acoustic wave generation, 18 vibration modes, [20][21][22] , cell apoptosis, 11 drug release 9,23 nanosurgery, 15,24 bubble formation, [25][26][27][28] NP shape modification 29 and melting, [29][30][31] nanosecondpulses for biomedical applications, 32,33 extreme thermodynamics conditions. [33][34][35][36][37] In this paper, we present and use a versatile numerical framework to investigate theoretically and numerically the evolution of the temperature distribution of a gold nanoparticle immersed in water when shined by a femtosecond-pulsed laser.…”

Section: 10mentioning

confidence: 99%

Femtosecond-pulsed optical heating of gold nanoparticles

2011

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We investigate theoretically and numerically the thermodynamics of gold nanoparticles immersed in water and illuminated by a femtosecond-pulsed laser at their plasmonic resonance. The spatiotemporal evolution of the temperature profile inside and outside is computed using a numerical framework based on a Runge-Kutta algorithm of the fourth order. The aim is to provide a comprehensive description of the physics of heat release of plasmonic nanoparticles under pulsed illumination, along with a simple and powerful numerical algorithm. In particular, we investigate the amplitude of the initial instantaneous temperature increase, the physical differences between pulsed and cw illuminations, the time scales governing the heat release into the surroundings, the spatial extension of the temperature distribution in the surrounding medium, the influence of a finite thermal conductivity of the gold/water interface, the influence of the pulse repetition rate of the laser, the validity of the uniform temperature approximation in the metal nanoparticle, and the optimum nanoparticle size (around 40nm) to achieve maximum temperature increase.

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Probing the acoustic vibrations of single metal nanoparticles by ultrashort laser pulses

Cited by 56 publications

References 97 publications

Tailored Hypersound Generation in Single Plasmonic Nanoantennas

Tailored Hypersound Generation in Single Plasmonic Nanoantennas

Thermo‐plasmonics: using metallic nanostructures as nano‐sources of heat

Femtosecond-pulsed optical heating of gold nanoparticles

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