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Recently, heat manipulation has gained the attention of scientific community due to its several applications. In this letter, based on transformation thermodynamic (TT) methodology, a novel material, which is called thermal-null medium…

Applied Physics · Physics 2021-01-04 Hooman Barati Sedeh , Mohammad Hosein Fakheri , Ali Abdolali , Fei Sun

We present a new method for calculating the temperature profile in high explosive (HE) material using a Convolutional Neural Network (CNN). To train/test the CNN, we have developed a hybrid experiment/simulation method for collecting…

Signal Processing · Electrical Eng. & Systems 2023-10-20 John Greenhall , David K. Zerkle , Eric S. Davis , Robert Broilo , Cristian Pantea

Recent advances in near-field plasmonic metamaterials, such as nanoresonators or transducers, have demonstrated the ability to generate localized fields of high intensity, and thus maintain relatively large nanoscale heat gradients on the…

Mesoscale and Nanoscale Physics · Physics 2022-06-15 Paweł Karwat , Grzegorz Pasławski , Paul Damery , Yanji Yang , Frank Bello , Ortwin Hess

The speed of writing of state-of-the-art ferromagnetic memories is physically limited by an intrinsic GHz threshold. Recently, an alternative research direction has been initiated by realizing memory devices based on antiferromagnets in…

Failure prediction of any electrical/optical component is crucial for estimating its operating life. Using high temperature operating life (HTOL) tests, it is possible to model the failure mechanisms for integrated circuits. Conventional…

Ultra-fast electronic phenomena originating from finite temperature, such as nonlinear optical excitation, can be simulated with high fidelity via real-time time dependent density functional theory (rt-TDDFT) calculations with hybrid…

Materials Science · Physics 2025-01-07 Rongrong Liu , Zhuoqiang Guo , Qiuchen Sha , Tong Zhao , Haibo Li , Wei Hu , Lijun Liu , Guangming Tan , Weile Jia

Thermally-tuning silicon micro-cavities are versatile and beneficial elements in low-cost large-scale photonic integrated circuits (PICs). Traditional metal heaters used for thermal tuning in silicon micro-cavities usually need a thick SiO2…

Optics · Physics 2015-06-23 Longhai Yu , Yaocheng Shi , Daoxin Dai , Sailing He

Mechanical transfer of high performing thin film devices onto arbitrary substrates represents an exciting opportunity to improve device performance, explore non-traditional manufacturing approaches, and paves the way for soft, conformal,…

We review the Raman shift method as a non-destructive optical tool to investigate the thermal conductivity and demonstrate the possibility to map this quantity with a micrometer resolution by studying thin film and bulk materials for…

Materials Science · Physics 2015-06-22 B. Stoib , S. Filser , J. Stötzel , A. Greppmair , N. Petermann , H. Wiggers , G. Schierning , M. Stutzmann , M. S. Brandt

Hyperthermia has been in use for many years; as a potential alternative modality for cancer treatment. In this paper, an experimental investigation of microwave assisted thermal heating (MWATH) of tissue phantom using a domestic microwave…

Medical Physics · Physics 2020-06-25 Dhiraj Kumar , Purbarun Dhar , Anup Paul

Laser irradiation of materials is most commonly modeled with the two-temperature model (TTM), or its combination with molecular dynamics, TTM-MD. For such modeling, the electronic transport coefficients are required. Here, we calculate the…

Materials Science · Physics 2024-05-14 Nikita Medvedev , Fedor Akhmetov , Igor Milov

Self-heating in next-generation, high-power-density field-effect transistor limits performance and complicates fabrication. Here, we introduce NEP-FET, a machine-learned framework for device-scale heat transport simulations of field-effect…

Materials Science · Physics 2025-11-26 Ke Xu , Gang Wang , Ting Liang , Yang Xiao , Dongliang Ding , Haichang Guo , Xiang Gao , Lei Tong , Xi Wan , Gang Zhang , Jianbin Xu

Near-field thermophotovoltaics (NFTPV) systems have significant potential for waste heat recovery applications, with both high theoretical efficiency and power density, up to 40% and $11 \ \mathrm{W/cm^{2}}$ at 900 K. Yet experimental…

Applied Physics · Physics 2024-12-16 Mathieu Giroux , Sean Molesky , Raphael St-Gelais , Jacob J. Krich

Thermal diodes, which allow heat transfer in a preferential direction while being blocked in a reverse direction, have numerous applications in thermal management, information processing, energy harvesting, etc. Typical materials of thermal…

Optics · Physics 2024-05-07 Yang Hu , Haotuo Liu , Bing Yang , Kezhang Shi , Mauro Antezza , Xiaohu Wu , Yasong Sun

The generation of radiation from free electrons passing a grating, known as Smith-Purcell radiation, finds various applications including non-destructive beam diagnostics and tunable light sources, ranging from terahertz towards X-rays. So…

Optics · Physics 2022-01-25 Urs Haeusler , Michael Seidling , Peyman Yousefi , Peter Hommelhoff

In this work, the near-field radiative heat transfer (NFRHT) between two Weyl semimetal (WSM) nanoparticles (NPs) is investigated. The numerical results show that negative differential thermal conductance (NDTC) effect can be obtained in…

Mesoscale and Nanoscale Physics · Physics 2022-09-07 Yasong Sun , Yang Hu , Kezhang Shi , Jihong Zhang , Dudong Feng , Xiaohu Wu

We report local time-resolved thermometry in a silicon nanowire quantum dot device designed to host a linear array of spin qubits. Using two alternative measurement schemes based on rf reflectometry, we are able to probe either local…

Heating magnetic nanoparticles with high frequency magnetic fields is a topic of interest for biological applications (magnetic hyperthermia) as well as for heterogeneous catalysis. This study shows why FeC NPs of similar structures and…

Stefan-Boltzmann's law indicates that far-field blackbody radiation scales at the fourth power of temperature. The temperature dependence of radiative heat transfer in the near field is expected to be very different due to the contribution…

Classical Physics · Physics 2021-11-16 Christophe Lucchesi , Rodolphe Vaillon , Pierre-Olivier Chapuis

It is now widely accepted that the CMOS technology implementing irreversible logic will hit a scaling limit beyond 2016, and that the increased power dissipation is a major limiting factor. Reversible computing can potentially require…

Information Theory · Computer Science 2007-07-13 P. Oscar Boykin , Vwani P. Roychowdhury
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