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相关论文: The Micromechanical Measurement of Photothermal Ex…

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By measuring the transmission of near-resonant light through an atomic vapor confined in a nano-cell we demonstrate a mesoscopic optical response arising from the non-locality induced by the motion of atoms with a phase coherence length…

Tuning interfacial thermal conductance has been a key task for the thermal management of nanoelectronic devices. Here, it is studied how the interfacial thermal conductance is great influenced by modulating the mass distribution of the…

材料科学 · 物理学 2021-05-05 Lina Yang , Xiao Wan , Dengke Ma , Yi Jiang , Nuo Yang

We study the nonequilibrium steady state thermodynamics of a photodevice which can operate as a solar cell or a photoconductor, depending on the degree of asymmetry of the junction. The thermodynamic efficiency is captured by a single…

量子物理 · 物理学 2025-03-10 Samuel L. Jacob , Artur M. Lacerda , Yonatan Dubi , John Goold

We report operating temperatures and heating coefficients measured in a multi-layer black phosphorus device as a function of injected electrical power. By combining micro-Raman spectroscopy and electrical transport measurements, we have…

材料科学 · 物理学 2015-12-15 Michael Engel , Mathias Steiner , Shu-Jen Han , Phaedon Avouris

Thermodynamics was developed in the XIXth century to provide a physical description to engines and other macroscopic thermal machines. Since then, progress in nanotechnologies urged to extend these formalism, initially designed for…

量子物理 · 物理学 2017-09-11 Cyril Elouard

Traction Force Microscopy (TFM) computes the forces exerted at the surface of an elastic material by measuring induced deformations in volume. It is used to determine the pattern of the adhesion forces exerted by cells or by cellular…

Energy-transfer efficiency is an important quantity in plasma-wakefield acceleration, especially for applications that demand high average power. Conventionally, the efficiency is measured using an electron spectrometer; an invasive method…

Photons carry linear momentum, and spin angular momentum when circularly or elliptically polarized. During light-matter interaction, transfer of linear momentum leads to optical forces, while angular momentum transfer induces optical…

光学 · 物理学 2016-11-16 Li He , Huan Li , Mo Li

We study the mechanical stability of a tunable high-finesse microcavity under ambient conditions and investigate light-induced effects that can both suppress and excite mechanical fluctuations. As an enabling step, we demonstrate the…

Optomechanical thermometry is a precise and reference-free method to measure absolute temperature. While pumping high optical power is needed to overcome noise and reduce the integration time, there is actually an upper limit to the useful…

量子物理 · 物理学 2019-08-21 Sina Khorasani

Photons, as quanta of electromagnetic fields, determine the electromagnetic properties of an extremely hot and dense medium. Considering the properties of photons in the interacting medium of charged particles, we explicitly calculate the…

高能物理 - 唯象学 · 物理学 2018-01-17 Samina Masood

Photonic integrated circuits play an important role in the field of optical computing, promising faster and more energy-efficient operations compared to their digital counterparts. This advantage stems from the inherent suitability of…

新兴技术 · 计算机科学 2024-04-17 Isidora Teofilovic , Ali Cem , David Sanchez-Jacome , Daniel Perez-Lopez , Francesco Da Ros

Thermal conduction was explored and discussed through a combined theoretical and simulation approach in this work. The thermal conductivity k of polycrystalline graphene was calculated by molecular dynamics simulations based on a hexagonal…

材料科学 · 物理学 2014-06-05 Yanlei Wang , Zhigong Song , Zhiping Xu

A new testing apparatus is proposed to measure the thermal properties of fabrics made from polymeric materials. The calibration of the apparatus and the data acquisition procedure are considered in detail in order to measure thermal…

仪器与探测器 · 物理学 2013-07-09 D. Romeli , G. Barigozzi , S. Esposito , G. Rosace , G. Salesi

Photophoretic force due to the optically-induced thermal effect provides an effective way to manipulate the light-absorbing particles suspended in ambient gases. However, how this force temporally responds to the intensity modulation of the…

光学 · 物理学 2019-03-01 Gui-hua Chen , Lin He , Mu-ying Wu , Yong-qing Li

Optical grating technique, where optical gratings are generated via light inference, has been widely used to measure charge carrier and phonon transport in semiconductors. In this paper, compared are three types of transient optical grating…

材料科学 · 物理学 2018-05-07 Ke Chen , Xianghai Meng , Feng He , Yongjian Zhou , Jihoon Jeong , Nathanial Sheehan , Seth R Bank , Yaguo Wang

An interferometric technique is proposed for determining the spatial forms of the individual degrees of freedom through which a many body system can absorb energy from its environment. The method separates out the coherent excitations…

量子物理 · 物理学 2017-08-30 S. Withington , C. N. Thomas , D. J. Goldie

The amplitudes for photoproduction of two pseudoscalars on a nucleon are expanded in the overall c.m. frame in a model independent way with respect to the contribution of the final state partial wave of total angular momentum $J$ and its…

核理论 · 物理学 2015-06-03 A. Fix , H. Arenh"ovel

Engaging with physical and material properties through empirical observation is a fundamental part of undergraduate physics and engineering education. Several works have proposed experiments to determine thermal physical constants of…

物理教育 · 物理学 2022-11-22 Robert D. Polak , Michael R. Harris , Kiet A. Nguyen , Anthony Kearns

This work focuses on determining the coefficient of thermal diffusivity in a one-dimensional heat transfer process along a homogeneous and isotropic bar, embedded in a moving fluid with heat generation. A first type (Dirichlet) condition is…

流体动力学 · 物理学 2022-01-03 Guillermo Federico Umbricht , Diana Rubio
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