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Monolithic Ultrahigh-Q Lithium Niobate Microring Resonator
Mian Zhang, Cheng Wang, Rebecca Cheng +2
We demonstrate an ultralow loss monolithic integrated lithium niobate photonic platform consisting of dry-etched subwavelength waveguides. We show microring resonators with a quali…
An integrated diamond Raman laser pumped in the near-visible
Pawel Latawiec, Vivek Venkataraman, Amirhassan Shams-Ansari +2
Using a high-Q diamond microresonator (Q > 300,000) interfaced with high-power-handling directly-written doped-glass waveguides, we demonstrate a Raman laser in an integrated platf…
Metasurface-assisted phase-matching-free second harmonic generation in lithium niobate waveguides
Cheng Wang, Zhaoyi Li, Myoung-Hwan Kim +5
The phase-matching condition is a key aspect in nonlinear wavelength conversion processes, which requires the momenta of the photons involved in the processes to be conserved. Conv…
Topology Optimized Multi-layered Meta-optics
Zin Lin, Benedikt Groever, Federico Capasso +2
We propose a general topology optimization framework for metasurface inverse design that can automatically discover highly complex multi-layered meta-structures with increased func…
Competition between Raman and Kerr effects in microresonator comb generation
Yoshitomo Okawachi, Mengjie Yu, Vivek Venkataraman +5
We investigate the effects of Raman and Kerr gain in crystalline microresonators and determine the conditions required to generate modelocked frequency combs. We show theoretically…
Topology-optimized Dual-Polarization Dirac Cones
Zin Lin, Lysander Christakis, Yang Li +3
We apply a large-scale computational technique, known as topology optimization, to the inverse design of photonic Dirac cones. In particular, we report on a variety of photonic cry…