Abstract
Excitation of synthetic opal with 337.1-nm nitrogen laser pulses gives rise to a persistent afterglow, lasting 15 s at 10 K. The afterglow spectrum correlates with the emission spectrum of opal observed earlier under excitation with UV light-emitting diodes. The effect can be understood in terms of the peaks in the density of photon states near the edges of the photonic band gap in photonic crystals.
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Original Russian Text © V.S. Gorelik, A.A. Esakov, I.I. Zasavitskii, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 6, pp. 716–721.
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Gorelik, V.S., Esakov, A.A. & Zasavitskii, I.I. Low-temperature persistent afterglow in opal photonic crystals under pulsed UV excitation. Inorg Mater 46, 639–643 (2010). https://doi.org/10.1134/S0020168510060142
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DOI: https://doi.org/10.1134/S0020168510060142