257 citations · 692 across the 18 of their papers we have counts for
9 papers · 1 filter
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…
Sputtered AlN buffer layer for low-loss crystalline AlN-on-sapphire integrated photonics
Samuele Brunetta, Samantha Sbarra, Brandon Shuen Yi Loke +4
In recent years, aluminum nitride (AlN) has emerged as an attractive material for integrated photonics due to its low propagation losses, wide transparency window, and presence of…
Thermal analysis of GaN-based photonic membranes for optoelectronics
Wilken Seemann, Mahmoud Elhajhasan, Julian Themann +11
Semiconductor membranes find their widespread use in various research fields targeting medical, biological, environmental, and optical applications. Often such membranes derive the…
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…
Polariton lasing in AlGaN microring with GaN/AlGaN quantum wells
Anthonin Delphan, Maxim N. Makhonin, Tommi Isoniemi +7
Microcavity polaritons are strongly interacting hybrid light-matter quasiparticles, which are promising for the development of novel light sources and active photonic devices. Here…
Ultrafast-nonlinear ultraviolet pulse modulation in an AlInGaN polariton waveguide operating up to room temperature
Davide Maria Di Paola, Paul M. Walker, Ruggero P. A. Emmanuele +9
Ultrafast nonlinear photonics enables a host of applications in advanced on-chip spectroscopy and information processing. These rely on a strong intensity dependent (nonlinear) ref…