UAB Digital Repository of Documents 2 records found  Search took 0.00 seconds. 
1.
14 p, 6.2 MB Thermal transport in suspended silicon membranes measured by laser-induced transient gratings / Vega-Flick, Alejandro (CINVESTAV-Unidad Mérida) ; Duncan, Ryan A. (Massachusetts Institute of Technology. Department of Chemistry) ; Eliason, Jeffrey Kristian (Massachusetts Institute of Technology. Department of Chemistry) ; Cuffe, John (Massachusetts Institute of Technology) ; Johnson, Jeremiah A. (Massachusetts Institute of Technology. Department of Chemistry) ; Peraud, Jean-Philippe M. (Massachusetts Institute of Technology) ; Zeng, Lingping (Massachusetts Institute of Technology) ; Lu, Zhengmao (Massachusetts Institute of Technology) ; Maznev, Alex A. (Massachusetts Institute of Technology. Department of Chemistry) ; Wang, Evelyn N. (Massachusetts Institute of Technology) ; Alvarado Gil, Juan José (CINVESTAV-Unidad Mérida) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Chen, Gang (Massachusetts Institute of Technology) ; Nelson, Keith A. (Massachusetts Institute of Technology. Department of Chemistry)
Studying thermal transport at the nanoscale poses formidable experimental challenges due both to the physics of the measurement process and to the issues of accuracy and reproducibility. The laser-induced transient thermal grating (TTG) technique permits non-contact measurements on nanostructured samples without a need for metal heaters or any other extraneous structures, offering the advantage of inherently high absolute accuracy. [...]
2016 - 10.1063/1.4968610
AIP advances, Vol. 6, Issue 12 (December 2016) , art. 121903  
2.
23 p, 540.5 KB Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes / Cuffe, John (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Eliason, Jeffrey Kristian (Massachusetts Institute of Technology. Department of Chemistry) ; Maznev, Alex A. (Massachusetts Institute of Technology. Department of Chemistry) ; Collins, Kimberlee C. (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Johnson, Jeremiah A. (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Chen, Gang (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Nelson, Keith A. (Massachusetts Institute of Technology. Department of Chemistry)
Knowledge of the mean-free-path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. We demonstrate that thermal conductivity measurements of thin membranes spanning a wide thickness range can be used to characterize how bulk thermal conductivity is distributed over phonon mean free paths. [...]
2015 - 10.1103/PhysRevB.91.245423
Physical review B : Condensed matter and materials physics, Vol. 91, Issue 24 (June 2015) , art. 245423  

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