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Hybrid halide perovskite has made great advances for making new composition of materials, which have wide usage in advanced optoelectronic devices. Here we show amplified spontaneous emission (ASE) in a perovskite nanograting metasurface, defined by the cost effective nanoimprint lithography method which cannot typically be applied to hard, ionic based materials such as perovskite.
We experimentally demonstrate ultra-high quality factors (Q = 1.45×106) in evolutionary optimized 2D L3 photonic crystal nanocavities fabricated in Si slabs. Together with ultra-small effective mode volumes ∼ 0.96(λ/n)3, such a nanocavity offers a new platform in future integrated nanophotonics.
We study, both theoretically and experimentally, emission of correlated photon-pairs by spontaneous four-wave-mixing in silicon integrated resonators. We show that the number of generated pairs in the quantum experiment is predicted by a classical experiment.
Erbium doped silicon has been analytically studied for its prospective application in on-chip optical communication. Laser functionality at 1.54 mum line of erbium emission has been analyzed. Erbium atoms in silicon host have been considered as defect centers offering strong recombination routes to injected carriers. Excitation process of erbium from the ground state to the higher excited state has...
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