DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HL: Fachverband Halbleiterphysik

HL 64: Poster II

HL 64.18: Poster

Donnerstag, 19. März 2020, 10:00–13:00, P1A

Ultrashort dynamics of an InP/AlGaInP QD SESAM — •Marius Großmann1, Julian Obermeier2, Roman Bek3, Thorsten Schumacher2, Markus Lippitz2, Michael Jetter1, and Peter Michler11Institut für Halbleiteroptik und Funktionelle Grenzflächen, Center for Integrated Quantum Science and Technology (IQST) and Research Center SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany — 2Department of Physics, University of Bayreuth, 95440 Bayreuth, Germany — 3Twenty-One Semiconductors, Kiefernweg 4, 72654 Neckartenzlingen, Germany

Mode-locked vertical external-cavity surface-emitting lasers (VECSELs) provide ultrashort pulses across a wide wavelength range. Furthermore, semiconductor bandgap engineering allows the additional flexibility to custom-tailor the pulse train properties.

To this end quantum dots (QDs) are a key component because their 0D-nature contributes beneficial properties when employed in a semiconductor saturable absorber mirror (SESAM). These include independently adjustable saturation fluence and modulation depth as well as a fast relaxation, all advantageous for mode locking of VECSELs.

In this contribution we present the ultrafast properties of an InP/AlGaInP QD SESAM investigated via degenerate pump-probe spectroscopy in the red spectral range.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2020 > Dresden