Abstract
We report on the two-photon excited photoluminescence of photonic quantum ring laser structures using Ti:Sapphire femtosecond pulsed laser. Using two-photon excited photoluminescence microscopy, we were able to image the laser structures when optically excited and compare the results with previously obtained images on electrically pumped photonic quantum ring lasers. We also propose a method to evaluate the Rayleigh band on the circumference of these structures.
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Acknowledgements
This work was supported by CNCSIS–UEFISCDI, project number PNII–IDEI 1566/2008, contract number 726/2009, and by the European Program COST MP0702. The authors are grateful to professor O’Dae Kwon for providing the PQR laser samples.
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Hristu, R., Stanciu, S.G., Kao, FJ. et al. Two-photon excited photoluminescence of photonic quantum ring laser structures. Appl. Phys. B 107, 97–101 (2012). https://doi.org/10.1007/s00340-011-4813-8
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DOI: https://doi.org/10.1007/s00340-011-4813-8