Investigation of coherent acoustic phonons in THz quantum cascade laser structures

Coherent zone folded acoustic phonons in terahertz quantum cascade laser (QCL) structures [1] are investigated by high-speed asynchronous optical sampling [2]. This method is based on two Ti:sapphire lasers with repetition rates of 1 GHz respectively. The time delay between pump and probe pulse is a...

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Những tác giả chính: Hettich, M, Bruchhausen, A, Lloyd-Hughes, J, Gebs, R, Bartels, A, Fischer, M, Beck, M, Scalari, G, Faist, J, Dekorsy, T
Định dạng: Conference item
Được phát hành: 2011

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