Broadband Photo-Excited Coherent Acoustic Frequency Combs and Mini-Brillouin-Zone Modes in a MQW-SESAM Structure

Broadband Photo-Excited Coherent Acoustic Frequency Combs and Mini-Brillouin-Zone Modes in a MQW-SESAM Structure

A multiple quantum-well semiconductor saturable absorber mirror (MQW-SESAM) structure has been investigated by femtosecond pump-probe laser spectroscopy at a central wavelength of around 1050 nm. Coherent acoustic phonons are generated and detected over a wide frequency range from ~15 GHz to ~800 GH...

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Bibliographic Details
Main Authors: Changxiu Li, Vitalyi Gusev, Emmanouil Dimakis, Thomas Dekorsy, Mike Hettich
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Applied Sciences
Subjects:
coherent acoustic phonons
pump-probe spectroscopy
quantum well
semiconductor superlattice
mini-Brillouin-zone
high-speed asynchronous optical sampling
Online Access:http://www.mdpi.com/2076-3417/9/2/289

Internet

http://www.mdpi.com/2076-3417/9/2/289

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