Ultrafast heat transport: the lagging behavior

Robert D. Y. Tzou

doi:10.1117/12.370169

12 November 1999 Ultrafast heat transport: the lagging behavior

Robert D. Y. Tzou

Proceedings Volume 3795, Terahertz and Gigahertz Photonics; (1999) https://doi.org/10.1117/12.370169
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

This work focuses on the thermalization and relaxation behaviors in ultrafast heat transport, ranging from sub- nanoseconds to picoseconds. The unique phenomena in thermal lagging, including ultrafast thermalization at short times, thermal exaggeration in amorphous materials, and thermal resonance in high-frequency excitations, are first summarized to draw special attention to the thermal design for ultrafast photonic devices. Temperature jumps across the interface between dissimilar materials follow, which include additional effects of phonon scattering in the interfacial area. Parameter groups are identified to characterize the temperature jumps to avoid the delamination damage due to thermal straining.

Citation Download Citation

Robert D. Y. Tzou "Ultrafast heat transport: the lagging behavior", Proc. SPIE 3795, Terahertz and Gigahertz Photonics, (12 November 1999); https://doi.org/10.1117/12.370169

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