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Quantum Dot Photonic-Crystal-Slab Nanocavities: Quality Factors and Lasing
| Research Area: | Nanophotonics | Year: | 2005 | ||
|---|---|---|---|---|---|
| Type of Publication: | Article | Keywords: | photonic crystal, semiconductor laser, quantum dot, quality factor | ||
| Authors: | J. Hendrickson; B. C. Richards; J. Sweet; S. Mosor; C. Christenson; D. Lam; G. Khitrova; H. M. Gibbs; Tomoyuki Yoshie; Axel Scherer; O. B. Shchekin; D. G. Deppe | ||||
| Journal: | Physical Review B | Volume: | 72 | ||
| Number: | 19 | Pages: | 193303 | ||
| Month: | November | ||||
| Abstract: | Emission linewidths of quantum dot photonic-crystal-slab nanocavities are measured as a function of temperature and fabrication parameters with low-power and high-power, cw and pulsed, nonresonant excitation. The cavity linewidth is dominated by the absorption of the ensemble of quantum dots having a density of ≅400∕μm2; above the absorption edge, the cavity linewidth broadens considerably compared with the empty cavity linewidth. Gain and lasing are seen for high-power pumping; it is estimated that only a small number of quantum dots contributes to the lasing. |
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| Full text: | PDF: Caltech only Online version (publisher) | ||||
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