INVESTIGADORES
BRUCHHAUSEN Axel Emerico
artículos
Título:
Observation of Zone-Folded Acoustic Phonons in Terahertz Quantum Cascade Lasers using Picosecond Ultrasonics
Autor/es:
AXEL BRUCHHAUSEN; MIKE HETTICH; JAMES LLOYD-HUGHES; MILAN FISCHER; MATTIAS BECK; GIACOMO SCALARI; JÉRÔME FAIST; THOMAS DEKORSY
Revista:
CHINESE JOURNAL OF PHYSICS
Editorial:
PHYSICAL SOC REPUBLIC CHINA
Referencias:
Lugar: Taipei; Año: 2011 vol. 49 p. 41 - 48
ISSN:
0577-9073
Resumen:
We have investigated the time-resolved vibrational properties of terahertz quantum cascade lasers by means of ultra-fast laser spectroscopy. By observing the acoustic folded branches, and by analyzing the involved phonon modes, it is possible to extract accurate structural information about these devices, which is essential for their design and performance.
