99 citations · 209 across the 7 of their papers we have counts for
7 papers
Frequency-modulated comb in a VECSEL
Christian Kriso, Avijit Barua, Obaid Mohiuddin +5
Optical frequency combs based on mode-locked lasers have revolutionized many areas of science and technology, such as precision metrology, optical frequency synthesis or telecommun…
Nonlinear refraction in CHNHPbBr single crystals
Christian Kriso, Markus Stein, Tobias Haeger +5
Hybrid lead halide perovskites, such as CHNHPbX (X=I, Br), are direct gap semiconductors that offer many superior optoelectronic properties combined with extremely simp…
Microcavity-enhanced Kerr nonlinearity in a vertical-external-cavity surface-emitting laser
C. Kriso, S. Kress, T. Munshi +7
Self-mode-locking has become an emerging path to the generation of ultrashort pulses with vertical-external-cavity surface-emitting lasers. In our work, a strong Kerr nonlinearity…
Density dependent exciton dynamics and L valley anisotropy in germanium
Markus Stein, Christian Lammers, Phillip Springer +4
Optical pump-THz probe spectroscopy is used to investigate the exciton formation dynamics and its intensity dependence in bulk Ge. Associated with the intra-excitonic 1s-2p transit…
Gain spectroscopy of a type-II VECSEL chip
Christian Lammers, Markus Stein, Christian Berger +9
Using optical pump-white light probe spectroscopy the gain dynamics is investigated for a VECSEL chip which is based on a type-II heterostructure. The active region the chip consis…
Observation of Coulomb-Assisted Dipole-Forbidden Intraexciton Transitions in Semiconductors
W. D. Rice, J. Kono, S. Zybell +14
We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum-well sample. Monit…
Asymmetric planar terahertz metamaterials
Ranjan Singh, Ibraheem A. I. Al-Naib, Martin Koch +1
We report an experimental observation of three distinct resonances in split ring resonators (SRRs) for both vertical and horizontal electric field polarizations at normal incidence…