We directly measure optical bound states in the continuum(BICs)by embedding a photodetector into a photonic crystal slab.The BICs observed in our experiment are the result of accidental phase matching between incident...We directly measure optical bound states in the continuum(BICs)by embedding a photodetector into a photonic crystal slab.The BICs observed in our experiment are the result of accidental phase matching between incident,reflected and in-plane waves at seemingly random wave vectors in the photonic band structure.Our measurements were confirmed through a rigorously coupled-wave analysis simulation in conjunction with temporal coupled mode theory.Polarization mixing between photonic crystal slab modes was observed and described using a plane wave expansion simulation.The ability to probe the field intensity inside the photonic crystal and thereby to directly measure BICs represents a milestone in the development of integrated opto-electronic devices based on BICs.展开更多
基金supported by the Austrian Science Funds(FWF):F 4909-N23(Next Lite)the PLATON project 35N within the Austrian NANO Initiative+1 种基金the‘Gesellschaft für Mikro-und Nanoelektronik’GMesupport from the European Research Council under the European Union’s Horizon 2020 research and innovation program(Grant Agreement No.639109).
文摘We directly measure optical bound states in the continuum(BICs)by embedding a photodetector into a photonic crystal slab.The BICs observed in our experiment are the result of accidental phase matching between incident,reflected and in-plane waves at seemingly random wave vectors in the photonic band structure.Our measurements were confirmed through a rigorously coupled-wave analysis simulation in conjunction with temporal coupled mode theory.Polarization mixing between photonic crystal slab modes was observed and described using a plane wave expansion simulation.The ability to probe the field intensity inside the photonic crystal and thereby to directly measure BICs represents a milestone in the development of integrated opto-electronic devices based on BICs.
