Blackbody Spectrum Revisited in the Near Field

Babuty, Arthur; Joulain, Karl; Chapuis, Pierre-Olivier; Greffet, Jean‐Jacques; Wilde, Yannick De

doi:10.1103/physrevlett.110.146103

Cited by 132 publications

(131 citation statements)

References 35 publications

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“…In contrast, the TINS spectrum peak position of SiC is strongly red-shifted with respect to the peak frequency of u den (ω, z, T ), due to tip-sample coupling or a change in dielectric environment due to the presence of the tip. 5,19 Phonon softening can contribute to a 6-7 cm 1 red-shift upon heating up to 550 K. However, the ∼60 cm 1 red-shift is larger than previously observed and cannot be adequately explained by conventional tip-sample coupling models or phonon softening. 20 Additionally, the effective medium model is not applicable to metallic tip materials with negative dielectric functions.…”

Section: Discussionmentioning

confidence: 51%

Laser heating of scanning probe tips for thermal near-field spectroscopy and imaging

O'callahan¹,

Raschke²

2016

APL Photonics

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Spectroscopy and microscopy of the thermal near-field yield valuable insight into the mechanisms of resonant near-field heat transfer and Casimir and Casimir-Polder forces, as well as providing nanoscale spatial resolution for infrared vibrational spectroscopy. A heated scanning probe tip brought close to a sample surface can excite and probe the thermal near-field. Typically, tip temperature control is provided by resistive heating of the tip cantilever. However, this requires specialized tips with limited temperature range and temporal response. By focusing laser radiation onto AFM cantilevers, we achieve heating up to ∼1800 K, with millisecond thermal response time. We demonstrate application to thermal infrared near-field spectroscopy (TINS) by acquiring near-field spectra of the vibrational resonances of silicon carbide, hexagonal boron nitride, and polytetrafluoroethylene. We discuss the thermal response as a function of the incident excitation laser power and model the dominant cooling contributions. Our results provide a basis for laser heating as a viable approach for TINS, nanoscale thermal transport measurements, and thermal desorption nano-spectroscopy.

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Section: Discussionmentioning

confidence: 51%

Laser heating of scanning probe tips for thermal near-field spectroscopy and imaging

O'callahan¹,

Raschke²

2016

APL Photonics

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“…This was using a typical scanning setup, involving a sharp probe and a sample. Strong enhancements of heat transfer in the near field have been demonstrated in similar settings [25][26][27]. Experiments in a planar geometry, closer to theorists' favourite ( Fig.…”

Section: Introduction: Motivationmentioning

confidence: 83%

“…This can be achieved with sharp tips that scatter the near field [27]. The scattered signal is dominated by the immediate environment of the local probe: a lateral resolution comparable to the distance d would be typical.…”

Section: Typical Features On the Nanoscalementioning

confidence: 99%

Nanoscale Thermal Transfer – An Invitation to Fluctuation Electrodynamics

Henkel

2016

Zeitschrift Für Naturforschung A

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“…The scattering of light by a nano/micro-particle placed in front of a substrate has also attracted particular interest [16]. This has helped in understanding the signals obtained with thermal infrared near-field spectroscopy (TINS) [17] and thermal radiation scanning tunneling microscopy (TRSTM) [18]. In these experimental techniques, a tip interacting with the surface scatters the evanescent electromagnetic waves.…”

Section: Introductionmentioning

confidence: 99%

Temperature of a nanoparticle above a substrate under radiative heating and cooling

Kallel¹,

Carminati²,

Joulain³

2017

Phys. Rev. B

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Controlling the temperature in architectures involving nanoparticles and substrates is a key issue for applications involving micro and nanoscale heat transfer. We study the thermal behavior of a single nanoparticle interacting with a flat substrate under external monochromatic illumination, and with thermal radiation as the unique heat loss channel. We develop a model to compute the temperature of the nanoparticle, based on an effective dipole-polarizability approach. Using numerical simulations, we thoroughly investigate the impacts of various parameters affecting the nanoparticle temperature, such as the nanoparticle-to-substrate gap distance, the incident light wavelength and polarization, or the material resonances. This study provides a tool for the thermal characterization and design of micro or nanoscale systems coupling substrates with nanoparticles or optical antennas.

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Blackbody Spectrum Revisited in the Near Field

Cited by 132 publications

References 35 publications

Laser heating of scanning probe tips for thermal near-field spectroscopy and imaging

Laser heating of scanning probe tips for thermal near-field spectroscopy and imaging

Nanoscale Thermal Transfer – An Invitation to Fluctuation Electrodynamics

Temperature of a nanoparticle above a substrate under radiative heating and cooling

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