241 citations · 905 across the 25 of their papers we have counts for
25 papers
Circuit quantum electrodynamic model of dissipative-dispersive Josephson traveling-wave parametric amplifiers
Yongjie Yuan, Michael Haider, Johannes A. Russer +2
We present a quantum mechanical model for a four-wave mixing Josephson traveling-wave parametric amplifier including substrate losses and associated thermal fluctuations. Under the…
Ultrashort pulse generation from a graphene-coupled passively mode-locked terahertz laser
Elisa Riccardi, Valentino Pistore, Seonggil Kang +10
The generation of stable trains of ultra-short (fs-ps), terahertz (THz)-frequency radiation pulses, with large instantaneous intensities, is an underpinning requirement for the inv…
Reducing the reflection error of PML absorbing boundary conditions within a generalized Maxwell-Bloch framework
Johannes Popp, Lukas Seitner, Michael Haider +1
We demonstrate a full-wave numerical Maxwell-Bloch simulation tool including perfectly matched layer (PML) absorbing boundary conditions. To avoid detrimental reflection errors at…
Intensity Pattern Types in Broadband Fourier Domain Mode-Locked (FDML) Lasers Operating Beyond the Ultra-Stable Regime
Mark Schmidt, Christin Grill, Simon Lotz +3
We report on the formation of various intensity pattern types in detuned Fourier domain mode-locked (FDML) lasers and identify the corresponding operating conditions. Such patterns…
Terahertz frequency combs exploiting an on-chip solution processed graphene-quantum cascade laser coupled-cavity architecture
F. P. Mezzapesa, K. Garrasi, J. Schmidt +11
The ability to engineer quantum-cascade-lasers (QCLs) with ultrabroad gain spectra and with a full compensation of the group velocity dispersion, at Terahertz (THz) frequencies, is…
Optoelectronic device simulations based on macroscopic Maxwell-Bloch equations
Christian Jirauschek, Michael Riesch, Petar Tzenov
Due to their intuitiveness, flexibility and relative numerical efficiency, the macroscopic Maxwell-Bloch (MB) equations are a widely used semiclassical and semi-phenomenological mo…