Publication

Spin Polarization in InGaAs quantum dots for spin-optoelectronics.

New paper in Applied Physics Letter on how the efficiency of introducing a spin polarization in InGaAs quantum dots depends on pump wavelength. Unfortunately, the wavelengths for best spin polarization and best quantum efficiency are not the same. If you are interested, please look at Appl. Phys. Lett. 126, 191102 (2025).

Spin Polarization in InGaAs quantum dots for spin-optoelectronics.
Optimizing spin polarization in quantum dot vertical-gain structures through pump wavelength selection
Applied Physics Letters 126, (2025)
Spintronic applications require an efficient injection of spin-polarized carriers. We study the maximally achievable spin polarization …
Postdeadline talk at CLEO-Europe: Evidence for spin memory.

Postdeadline talk PD-1.1: “Evidence for spin memory in photoluminescence of room temperature vertical-cavity quantum dot gain structure” at CLEO-Europe 2021

Postdeadline talk at CLEO-Europe: Evidence for spin memory.
Evidence for spin memory in photoluminescence of room temperature vertical-cavity quantum dot gain structure
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 1–1 (2021)
Spin-optoelectronics is a rapidly developing field with promises to provide extra functionalities in communication and spectroscopy via …
Mapping the dynamical regimes of a SESAM mode-locked VECSEL with a long cavity using time series analysis
Optics Express 26, 16624 (2018)
Invited talk: VECSELs – An overview and specific aspects.

Invited talk: Vertical-cavity external surface-emitting lasers – An overview and specific aspects. Coherent Engineering Seminar, Coherent Inc., Santa Clara, CA, USA, Aug 12, 2011

Invited talk: VECSELs – An overview and specific aspects.
Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser
Optics Express 18, 187–192 (2010)
We demonstrate the first synchronously in-well pumped vertical-external-cavity surface-emitting laser (VECSEL). Depending on the cavity …
Quantum modeling of semiconductor gain materials and vertical-external-cavity surface-emitting laser systems
Physica status solidi (b) 247, 789–808 (2010)
This article gives an overview of the microscopic theory used to quantitatively model a wide range of semiconductor laser gain …
Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser
Applied Optics 45, 7729–7735 (2006)
We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm …