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Towards coupling rare earth ions to a Y_2SiO_5 nanophotonic resonator

Abstract

An yttrium orthosilicate nanophotonic resonator is fabricated with resonances near the ^4I_(9/2)-^4F_(3/2) hyperfine transition of Neodymium ions. Measured absorption by Neodymium embedded in a nanobeam indicates promising prospect for coupling ions to our nano-resonator

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