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An yttrium orthosilicate nanophotonic resonator is fabricated with resonances near the 4I9/2-4F3/2 hyperfine transition of Neodymium ions. Measured absorption by Neodymium embedded in a nanobeam indicates promising prospect for coupling ions to our nano-resonator.
We demonstrate all-semiconductor thin-film plasmonic absorbers, where strong absorption in these structures is linked to the excitation of highly-confined negative-index surface plasmon polaritons.We present numerical and analytical descriptions of guided modes of the system.
We retrieve the thermal dissipation time of τ=0.25µs and investigate the power dependent absorption in a SiN microring resonator. We estimate n2=4.3×10−19m2/W based on clear 1 GHz optical modulation of the refractive index.
Bowtie apertures with gap sizes of less than 30nm are fabricated successfully by lift-off process. Numerical modeling shows that they have mode area as small as 0.011(λ/n)2, which is two orders smaller than a conventional tightly focused laser spot.
By combining analytic theory, parallel ab-initio simulations and experiments, we demonstrate how to exploit chaos to dramatically enhance light trapping performance.
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