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- W1985804734 abstract "One-dimensional photonic crystal (1DPhC) micro-cavity resonators, constituted of Eu2+, 3+ doped silica layer inserted between two 5-bilayered SiO2/SnO2 Bragg mirrors, are fabricated by sol–gel process. The 1DPhC exhibits a ∼180 nm wide stop-band, with peak-reflectivity of more than 96%. Spectral modifications of the photonic stop-band by varying the angle of detection with respect to the sample surface normal are studied. With an increase in the detection angle from 0° to 45° the defect-mode continuously sweeps from 598.6 nm to 532.0 nm, selectively enhancing the coinciding Eu2+, 3+ emission. To quantify the increase in spontaneous emission at defect-mode frequencies, a relative enhancement factor is devised. The increased photon density of states at defect-mode frequencies is found to enhance the weak emission tail of Eu2+, 3+ ions by a factor of ∼9." @default.
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- W1985804734 date "2015-02-23" @default.
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- W1985804734 title "Increased photon density of states at defect-mode frequencies led enhancement of tunability of spontaneous emission from Eu<sup>2+, 3+</sup>doped SiO<sub>2</sub>/SnO<sub>2</sub>one-dimensional photonic crystals" @default.
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- W1985804734 doi "https://doi.org/10.1088/2053-1591/2/3/036201" @default.
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