Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Ultralong Dephasing Time in InGaAs Quantum Dots

Borri, Paola ORCID:, Langbein, Wolfgang Werner ORCID:, Schneider, S., Woggon, U., Sellin, R. L., Ouyang, D. and Bimberg, D. 2001. Ultralong Dephasing Time in InGaAs Quantum Dots. Physical Review Letters (PRL) 87 (15) , 157401. 10.1103/PhysRevLett.87.157401

[thumbnail of Ultralong_Dephasing_Time.pdf]
Download (114kB) | Preview


We measure a dephasing time of several hundred picoseconds at low temperature in the groundstate transition of strongly confined InGaAs quantum dots, using a highly sensitive four-wave mixing technique. Between 7 and 100 K the polarization decay has two distinct components resulting in a non-Lorentzian line shape with a lifetime-limited zero-phonon line and a broadband from elastic excitonacoustic phonon interactions.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Physics and Astronomy
Publisher: American Physical Society
ISSN: 0031-9007
Last Modified: 01 Dec 2022 10:15

Citation Data

Cited 38 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics