Long mean free paths of room-temperature THz acoustic phonons in a high thermal conductivity material

Long mean free paths of room-temperature THz acoustic phonons in a high thermal conductivity material

We report measurements of room-temperature mean free paths of long-lived THz acoustic phonons in wurtzite GaN. Longitudinal phonon wave packets are excited and probed by femtosecond laser pulses in two InGaN-GaN multiple quantum well structures separated by a GaN layer. By measuring the temperature...

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Bibliographic Details
Main Authors: Chou, Ting-Han, Lindsay, Lucas, Maznev, Alexei A., Gandhi, Jateen S., Stokes, Donna W., Forrest, Rebecca L., Bensaoula, Abdelhak, Nelson, Keith A., Sun, Chi-Kuang
Other Authors: Massachusetts Institute of Technology. Department of Chemistry
Format: Article
Language:English
Published: American Physical Society 2021
Online Access:https://hdl.handle.net/1721.1/136932

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