120 citations · 197 across the 7 of their papers we have counts for
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Self-organized spatiotemporal quasi-phase-matching in microresonators
Ji Zhou, Jianqi Hu, Marco Clementi +4
Quasi-phase-matching (QPM) is a widely adopted technique for mitigating stringent momentum conservation in nonlinear optical processes such as second-harmonic generation (SHG). It…
A chip-scale second-harmonic source via injection-locked all-optical poling
Marco Clementi, Edgars Nitiss, Elena Durán-Valdeiglesias +5
Second-harmonic generation allows for coherently bridging distant regions of the optical spectrum, with applications ranging from laser technology to self-referencing of frequency…
Integrated Backward Second-Harmonic Generation Through Optically Induced Quasi-Phase Matching
Ozan Yakar, Edgars Nitiss, Jianqi Hu +1
Quasi-phase-matching for efficient backward second-harmonic generation (BSHG) requires sub-m poling periods, a non-trivial fabrication feat. For the first time, we report int…
Photo-induced cascaded harmonic and comb generation in silicon nitride microresonators
Jianqi Hu, Edgars Nitiss, Jijun He +5
Silicon nitride (SiN) is an ever-maturing integrated platform for nonlinear optics. Yet, due to the absence of second-order () nonlinearity, SiN is mostly…
Coherent Photogalvanic Effect for Second-Order Nonlinear Photonics
Ozan Yakar, Edgars Nitiss, Jianqi Hu +1
The coherent photogalvanic effect leads to the generation of a current under the absorption interference of coherent beams and allows for the inscription of space-charge gratings l…
Optically reconfigurable quasi-phase-matching in silicon nitride microresonators
Edgars Nitiss, Jianqi Hu, Anton Stroganov +1
Bringing efficient second-order nonlinear effects in integrated photonics is an important task motivated by the prospect of enabling all possible optical functionalities on chip. S…