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Absolute Upconversion Quantum Yield of β-NaYF4:Er3+ under Broadband Excitation in Dependence on the Erbium Concentration – Measurements and Simulations

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We investigate the upconversion quantum yield of β-NaYF4:Er3+ under broadband excitation both experimentally and theoretically. The upconversion quantum yield strongly depends on the erbium concentration, and shows a maximum for an erbium concentration of 25%.

© 2012 Optical Society of America

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