Auteur Patrick E. Hopkins
Documents disponibles écrits par cet auteur (7)
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Patrick E. Hopkins, Auteur ; John C. Duda, Auteur ; Pamela M. Norris, Auteur |Continued reduction in characteristic dimensions in nanosystems has given rise to increasing importance of material interfaces on the overall system performance. With regard to thermal transport, this increases the need for a better fundamental [...]
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This work examines the effects of photonically induced interband excitations from the d-band to states at the Fermi energy on thermophysical properties in noble metals. The change in the electron population in the d-band and the conduction band [...]
Article : texte imprimé
Patrick E. Hopkins, Auteur ; Justin R. Serrano, Auteur ; Leslie M. Phinney, Auteur |Pump-probe transient thermoreflectance (TTR) techniques are powerful tools for measuring the thermophysical properties of thin films, such as thermal conductivity, Lambda, or thermal boundary conductance, G. This paper examines the assumption of[...]
Article : texte imprimé
This work examines the effects of photonically induced interband excitations from the d-band to states at the Fermi energy on the electron temperature decay in noble metals. The change in the electron population in the d-band and the conduction [...]
Article : texte imprimé
Patrick E. Hopkins, Auteur ; Bryan Kaehr, Auteur ; Leslie M. Phinney, Auteur |Nanocomposites offer unique capabilities of controlling thermal transport through the manipulation of various structural aspects of the material. However, measurements of the thermal properties of these composites are often difficult, especially[...]
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John C. Duda, Auteur ; Pamela M. Norris, Auteur ; Patrick E. Hopkins, Auteur |We present a new model for predicting thermal boundary conductance in the classical limit. This model takes a different form than those of the traditionally used mismatch theories in the fact that the temperature dependence of thermal boundary c[...]
Article : texte imprimé
Patrick E. Hopkins, Auteur ; Leslie M. Phinney, Auteur ; Justin R. Serrano, Auteur |In this work, we examine Fermi relaxation in 20 nm Au films with pump-probe themoreflectance using a thin film, intraband thermoreflectance model. Our results indicate that the Fermi relaxation of a perturbed electron system occurs approximately[...]
