Journal ArticleDOI
An optical pump-probe technique for measuring the thermal conductivity of liquids
TLDR
A pump-probe optical technique for measuring the thermal conductivity of liquids using a reflective geometry which does not depend on the optical properties of the liquid and requires as little as a single droplet to produce a result is presented.Abstract:
We present a pump-probe optical technique for measuring the thermal conductivity of liquids. The technique uses a reflective geometry which does not depend on the optical properties of the liquid and requires as little as a single droplet to produce a result. An analytical solution is given for bidirectional heat flow in layered media, including the effects of radial heat flow from coaxial Gaussian laser spots, thermal interface resistances, and the accumulation of multiple laser pulses. In addition, several experimental improvements over previous pump-probe configurations are described, resulting in an improved signal to noise ratio and smaller errors at long stage delay times. The technique is applied to a range of liquids and solids. Results are in good agreement with literature values.read more
Citations
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Journal ArticleDOI
Nanoscale thermal transport. II. 2003–2012
David G. Cahill,Paul V. Braun,Gang Chen,David R. Clarke,Shanhui Fan,Kenneth E. Goodson,Pawel Keblinski,William P. King,Gerald D. Mahan,Arun Majumdar,Humphrey J. Maris,Simon R. Phillpot,Eric Pop,Li Shi +13 more
TL;DR: In this article, a review of thermal transport at the nanoscale is presented, emphasizing developments in experiment, theory, and computation in the past ten years and summarizes the present status of the field.
Journal ArticleDOI
Pulse accumulation, radial heat conduction, and anisotropic thermal conductivity in pump-probe transient thermoreflectance
TL;DR: The relationship between pulse accumulation and radial heat conduction in pump-probe transient thermoreflectance (TTR) is explored and the results illustrate how pulse accumulation allows TTR to probe two thermal length scales simultaneously.
Journal ArticleDOI
Coherent phonon heat conduction in superlattices.
Maria N. Luckyanova,Jivtesh Garg,Keivan Esfarjani,Adam Jandl,Mayank T. Bulsara,Alexander Schmidt,Austin J. Minnich,Shuo Chen,Mildred S. Dresselhaus,Zhifeng Ren,Eugene A. Fitzgerald,Gang Chen +11 more
TL;DR: The experimental observation of coherent heat conduction through the use of finite-thickness superlattices with varying numbers of periods is reported, which is consistent with a coherent phononHeat conduction process.
Journal ArticleDOI
High thermal conductivity in cubic boron arsenide crystals.
Sheng Li,Qiye Zheng,Yinchuan Lv,Xiaoyuan Liu,Xiqu Wang,Pinshane Y. Huang,David G. Cahill,Bing Lv +7 more
TL;DR: In this paper, the experimental discovery of high thermal conductivity at room temperature in cubic boron arsenide (BAs) grown through a modified chemical vapor transport technique was reported.
Journal ArticleDOI
A frequency-domain thermoreflectance method for the characterization of thermal properties.
TL;DR: A frequency-domain thermoreflectance method for measuring the thermal properties of homogenous materials and submicron thin films and its sensitivity to various thermal properties is given, along with results from measurements of several standard materials over a wide range of thermal diffusivities.
References
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Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
Journal ArticleDOI
Analysis of heat flow in layered structures for time-domain thermoreflectance
TL;DR: In this article, the iterative algorithm of Feldman for heat flow in layered structures is solved in cylindrical coordinates for surface heating and temperature measurement by Gaussian-shaped laser beams.
Journal ArticleDOI
Kapitza conductance and heat flow between solids at temperatures from 50 to 300 K.
R. J. Stoner,Humphrey J. Maris +1 more
TL;DR: It is shown that the anomalously large conductance can be understood in terms of a model in which the anharmonicity of the metal plays an importantmore » role.
Journal ArticleDOI
Femtosecond room-temperature measurement of the electron-phonon coupling constant gamma in metallic superconductors
S. D. Brorson,A. S. Kazeroonian,Jagadeesh S. Moodera,D. W. Face,T. K. Cheng,Erich P. Ippen,M. S. Dresselhaus,G. Dresselhaus +7 more
TL;DR: The first systematic femtosecond pump-probe measurements of the electron-phonon coupling constant {lambda} in thin films of Cu, Au, Cr, Ti, W, Nb, V, Pb, NBN, and V{sub 3}Ga are reported.
Journal ArticleDOI
Short-pulse laser heating on metals
T.Q. Qiu,C. L. Tien +1 more
TL;DR: In this article, the radiation-metal interactions are treated as a coupled two-step process: (1) the absorption of photon energy by electrons and (2) the subsequent heating of the metal lattice through electron-phonon collisions.