257 citations · 388 across the 5 of their papers we have counts for
5 papers
Three-Octave Supercontinuum Generation in Thick Crystalline Aluminum Nitride Waveguides
Samantha Sbarra, Samuele Brunetta, Pierre Arnaud Demongodin +4
We report an efficient extension of supercontinuum generation through dispersion engineering of crystalline aluminum nitride (AlN)-on-sapphire waveguides. Using a tailored epitaxia…
Optical and thermal characterization of a group-III nitride semiconductor membrane by microphotoluminescence spectroscopy and Raman thermometry
Mahmoud Elhajhasan, Wilken Seemann, Katharina Dudde +9
We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking micro-photoluminescen…
Doubly resonant second-harmonic generation of a vortex beam from a bound state in the continuum
Jun Wang, Marco Clementi, Momchil Minkov +7
Second harmonic generation in nonlinear materials can be greatly enhanced by realizing doubly-resonant cavities with high quality factors. However, fulfilling such doubly resonant…
Cavity-enhanced optical Hall effect in two-dimensional free charge carrier gases detected at terahertz frequencies
S. Knight, S. Schöche, V. Darakchieva +6
The effect of a tunable, externally coupled Fabry-Pérot cavity to resonantly enhance the optical Hall effect signatures at terahertz frequencies produced by a traditional Drude-lik…
Spontaneous Polarisation Build up in a Room Temperature Polariton Laser
J. J. Baumberg, A. V. Kavokin, S. Christopoulos +9
We observe the build up of strong (~50%) spontaneous vector polarisation in emission from a GaN-based polariton laser excited by short optical pulses at room temperature. The Stoke…