Modification of photoluminescence spectrum of artificial opal under external effects

Kurbanov, S. S.; Shaymardanov, Z. Sh.; Kasymdzhanov, M. A.; Zakhidov, E. A.; Khabibullaev, P. K.; Kang, Tae Won

doi:10.1016/j.physb.2007.10.245

Cited by 6 publications

(2 citation statements)

References 34 publications

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“…Even at room temperature, the detailed inspection revealed the weak time-delayed "tail" with a duration of 1.3 not seen in Fig. 3 (the 1 afterglow existence was also noted in [11]). Thus, in the Fig.…”

Section: Methodsmentioning

confidence: 82%

Temporal Characteristics of Afterglow in Artificial Opal

Vasnetsov¹,

Bazhenov²,

Ponevchinsky³

et al. 2016

Ukr. J. Phys.

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We report the results of an experimental study of the temporal response of the artificial opal luminescence excited by UV pulses from a nitrogen laser at room temperature, liquid-nitrogen temperature, and in the intermediate range. While the response time does not exceed 15 ns at room temperature, the afterglow at liquid-nitrogen temperature was detected with a decay time of about 700 ms. We have revealed that the afterglow appears suddenly with just millisecondrange duration at a definite temperature of 130 ± 5 K. The temperature dependence of the afterglow is of importance for the explanation of surprising effects of the stimulated emission in a single nano-sized SiO2 globule and the second harmonic generation in the material at liquid-nitrogen temperature. K e y w o r d s: artificial opal, afterglow, nanocavity lasing.

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Section: Methodsmentioning

confidence: 82%

Temporal Characteristics of Afterglow in Artificial Opal

Vasnetsov¹,

Bazhenov²,

Ponevchinsky³

et al. 2016

Ukr. J. Phys.

View full text Add to dashboard Cite

show abstract

“…The luminescence response occurs in a broad spectrum 450-700 nm and demonstrates quite surprising longtime decay at the low-temperature conditions [14]. The spectrum shape depends on the observation angle and the presence of a photonic bandgap was found to occur [15][16][17].…”

Section: Methodsmentioning

confidence: 96%