Resonance amplification of defect emission in ZnO-inverted opal

Journal article


Publication Details

Author(s): Khunsin W, Scharrer M, Aagesen LK, Anderson MA, Chang RPH, Sotomayor Torres CM, Romanov SG
Journal: Optics Letters
Publication year: 2009
Volume: 34
Journal issue: 10
ISSN: 0146-9592


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/cm$^2$ onset 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.


FAU Authors / FAU Editors

Scharrer, Michael
Lehrstuhl für Experimentalphysik (Alfried Krupp von Bohlen und Halbach-Professur)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

Institució Catalana de Recerca i Estudis Avançats (ICREA) / Catalan Institution for Research and Advanced Studies
Northwestern University
University College Cork (UCC)


Research Fields

C Photonic and Optical Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

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

MLA:
Khunsin, Worawut, et al. "Resonance amplification of defect emission in ZnO-inverted opal." Optics Letters 34.10 (2009).

BibTeX: 

Last updated on 2019-18-03 at 11:38