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Related papers: Nanophotonic thermal management in X-ray tubes

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We use infrared thermometry of carbon nanotube network (CNN) transistors and find the formation of distinct hot spots during operation. However, the average CNN temperature at breakdown is significantly lower than expected from the…

Mesoscale and Nanoscale Physics · Physics 2011-02-22 David Estrada , Eric Pop

Magnetic particle hyperthermia, in which colloidal nanostructures are exposed to an alternating magnetic field, is a promising approach to cancer therapy. Unfortunately, the clinical efficacy of hyperthermia has not yet been optimized.…

Hot tips are used either for characterizing nanostructures by using scanning thermal microscopes or for local heating to assist data writing. The tip-sample thermal interaction involves conduction at solid-solid contact as well as…

Materials Science · Physics 2008-02-15 Stéphane Lefèvre , Sebastian Volz , Pierre-Olivier Chapuis

We demonstrate the possibility to rectify the nanoscale radiative heat flux between two nanoparticles by coupling them with the nonreciprocal surface modes of a magneto-optical substrate in a Voigt configuration. When the non-reciprocal…

Mesoscale and Nanoscale Physics · Physics 2019-04-30 Annika Ott , Riccardo Messina , Philippe Ben-Abdallah , Svend-Age Biehs

Nanoporous materials are a promising platform for thermoelectrics in that they offer high thermal conductivity tunability while preserving good electrical properties, a crucial requirement for high- effciency thermal energy conversion.…

Materials Science · Physics 2017-09-20 Giuseppe Romano , Jeffrey C. Grossman

We demonstrate that recent advances in nanoscale thermal transport and temperature manipulation can be brought to bear on the problem of tailoring thermal radiation from compact emitters. We show that wavelength-scale composite bodies…

Mesoscale and Nanoscale Physics · Physics 2016-03-29 Weiliang Jin , Athanasios G. Polimeridis , Alejandro W. Rodriguez

Self-heating is a severe problem for high-power microelectronic devices. Graphene and few-layer graphene have attracted tremendous attention for heat removal thanks to their extraordinarily high in-plane thermal conductivity. However, this…

We analyze the benefits and shortcomings of a thermal control in nanoscale electronic conductors by means of the contact heating scheme. Ideally, this straightforward approach allows one to apply a known thermal bias across nanostructures…

Results on the heating and the parametric feedback cooling of an optically trapped anisotropic nanoparticle in the laser shot noise dominant regime are presented. The related dynamical parameters, such as the oscillating frequency and shot…

Quantum Physics · Physics 2017-11-30 Changchun Zhong , F. Robicheaux

Nanoscale photothermal sources find important applications in theranostics, imaging, and catalysis. In this context, graphene offers a unique suite of optical, electrical, and thermal properties, which we exploit to show self-consistent…

Materials Science · Physics 2018-08-08 Renwen Yu , Qiushi Guo , Fengnian Xia , F. Javier García de Abajo

Absorption microscopy is a powerful technique, enabling the detection of single non- fluorescent molecules at room temperature. So far, the molecular absorption has been probed optically via the attenuation of a probing laser. The…

Applied Physics · Physics 2018-11-21 Miao-Hsuan Chien , Mario Brameshuber , Gerhard J. Schütz , Silvan Schmid

This work investigates how a thermal diode can be designed from a nematic liquid crystal confined inside a cylindrical capillary. In the case of homeotropic anchoring, a defect structure called escaped radial disclination arises. The…

Soft Condensed Matter · Physics 2016-08-29 Djair Melo , Ivna Fernandes , Fernando Moraes , Sébastien Fumeron , Erms Pereira

A source of medical x-rays based on a 50 Mev storage ring and a quasi-continues picosecond laser is considered. It is shown that such generator produces useful X-ray flux with higher average power and higher efficiency than that of…

Accelerator Physics · Physics 2007-05-23 E. G. Bessonov , R. M. Feshchenko , M. V. Gorbunkov , A. V. Vinogradov , V. I. Shvedunov

Super-aligned carbon nanotube (CNT) films have intriguing anisotropic thermal transport properties due to the anisotropic nature of individual nanotubes and the important role of nanotube alignment. However, the relationship between the…

Applied Physics · Physics 2020-02-06 Wei Yu , Xinpeng Zhao , Puqing Jiang , Changhong Liu , Ronggui Yang

The management of thermal effects in plasmonic nanostructures is frequently viewed as a detrimental waste rather than a useful, controllable entity. We show that optical coupling of plasmonic nanoparticles enables precise spatiotemporal…

Optics · Physics 2025-12-16 José Luis Montaño Priede , Marek Grzelczak

Nanoscale thermal properties are becoming of extreme importance for modern electronic circuits that dissipate increasing power on the length scale of few tens of nanometers, and for chemical and physical properties sensors and biosensors…

Instrumentation and Detectors · Physics 2013-06-07 Peter D. Tovee , Oleg V. Kolosov

The structures for the TRI$\mu$P facility have been completed and commissioned. At the facility radioactive nuclides are produced to study fundamental interactions and symmetries. An important feature is the possibility to trap radioactive…

Passive thermal spreaders utilizing liquid/vapor phase-change mechanism such as heat pipes, have been widely used in the macro-scale thermal management of electronic devices for many years. Micro-fabrication techniques enabled the…

Applied Physics · Physics 2018-12-11 Yigit Akkus , Chinh Thanh Nguyen , Alper Tunga Celebi , Ali Beskok

We discuss the state-of-the-art and remaining challenges in the fundamental understanding and technology development for controlling light-matter interactions in nanophotonic environments in and away from thermal equilibrium. The topics…

Assuming that 1-dimensional self-assembly nanotubes can be represented as a 1-dimensional cavity-type black-body radiator of length L and radius r in thermal equilibrium at a temperature T, analytical expressions for the thermal radiative…

Materials Science · Physics 2019-09-26 Anatoliy I Fisenko , Vladimir F Lemberg