436 citations · 636 across the 5 of their papers we have counts for
6 papers · 1 filter
Engineering the spectral bandwidth of quantum cascade laser frequency combs
Maximilian Beiser, Nikola Opačak, Johannes Hillbrand +2
Quantum cascade lasers (QCLs) facilitate compact optical frequency comb sources that operate in the mid-infrared and terahertz spectral regions, where many molecules have their fun…
Mode-locked ultrashort pulses from an 8 m wavelength semiconductor laser
Johannes Hillbrand, Nikola Opacak, Marco Piccardo +4
Quantum cascade lasers (QCL) have revolutionized the generation of mid-infrared light. Yet, the ultrafast carrier transport in mid-infrared QCLs has so far constituted a seemingly…
In-phase and anti-phase synchronization in a laser frequency comb
Johannes Hillbrand, Dominik Auth, Marco Piccardo +5
Coupled clocks are a classic example of a synchronization system leading to periodic collective oscillations. This phenomenon already attracted the attention of Christian Huygens b…
A monolithic frequency comb platform based on interband cascade lasers and detectors
Benedikt Schwarz, Johannes Hillbrand, Maximilian Beiser +6
Optical frequency combs enable all-solid-state spectrometers that will trigger a breakthrough in miniaturization and on-chip integration of mid-infrared sensing technology. Interba…
Coherent injection locking of quantum cascade laser frequency combs
Johannes Hillbrand, Aaron Maxwell Andrews, Hermann Detz +2
Quantum cascade laser (QCL) frequency combs are a promising candidate for chemical sensing and biomedical diagnostics, requiring only milliseconds of acquisition time to record abs…
Optical properties of metal-dielectric-metal microcavities in the THz frequency range
Yanko Todorov, Lorenzo Tosetto, Jean Teissier +6
We present an experimental and theoretical study of the optical properties of metal-dielectric-metal structures with patterned top metallic surfaces, in the THz frequency range. Wh…