Resonance amplification of defect emission in ZnO-inverted opal

Worawut Khunsin, Michael Scharrer, Larry K. Aagesen, Mark A. Anderson, Robert P. H. Chang, Clivia M Sotomayor Torres, Sergei G. Romanov

Research output: Contribution to journalArticle

Abstract

Transformation of broadband emission of oxygen defects in the carcass of ZnO-inverted opal into a multiple- mode amplified spontaneous emission band has been observed in the spectral interval of a photonic bandgap upon increasing excitation intensity. The mode structure has been assigned to amplification of emission coupled to resonance modes of the self-selected distributed Bragg resonator. The surprisingly low 2 W/cm2onset of amplification has been explained by the long radiative decay time of defect states populated according to the three-level excitation scheme. The decrease of emission intensity between amplified peaks has been associated with the saturation of the ZnO defect emission.

Original languageEnglish
Pages (from-to)1519-1521
Number of pages3
JournalOptics Letters
Volume34
Issue number10
DOIs
Publication statusPublished - May 15 2009

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defects
spontaneous emission
excitation
resonators
photonics
broadband
intervals
saturation
decay
oxygen

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Khunsin, W., Scharrer, M., Aagesen, L. K., Anderson, M. A., Chang, R. P. H., Torres, C. M. S., & Romanov, S. G. (2009). Resonance amplification of defect emission in ZnO-inverted opal. Optics Letters, 34(10), 1519-1521. https://doi.org/10.1364/OL.34.001519

Resonance amplification of defect emission in ZnO-inverted opal. / Khunsin, Worawut; Scharrer, Michael; Aagesen, Larry K.; Anderson, Mark A.; Chang, Robert P. H.; Torres, Clivia M Sotomayor; Romanov, Sergei G.

In: Optics Letters, Vol. 34, No. 10, 15.05.2009, p. 1519-1521.

Research output: Contribution to journalArticle

Khunsin, W, Scharrer, M, Aagesen, LK, Anderson, MA, Chang, RPH, Torres, CMS & Romanov, SG 2009, 'Resonance amplification of defect emission in ZnO-inverted opal', Optics Letters, vol. 34, no. 10, pp. 1519-1521. https://doi.org/10.1364/OL.34.001519
Khunsin W, Scharrer M, Aagesen LK, Anderson MA, Chang RPH, Torres CMS et al. Resonance amplification of defect emission in ZnO-inverted opal. Optics Letters. 2009 May 15;34(10):1519-1521. https://doi.org/10.1364/OL.34.001519
Khunsin, Worawut ; Scharrer, Michael ; Aagesen, Larry K. ; Anderson, Mark A. ; Chang, Robert P. H. ; Torres, Clivia M Sotomayor ; Romanov, Sergei G. / Resonance amplification of defect emission in ZnO-inverted opal. In: Optics Letters. 2009 ; Vol. 34, No. 10. pp. 1519-1521.
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