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Two-photon excited photoluminescence of photonic quantum ring laser structures

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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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Authors and Affiliations

  1. Center for Microscopy-Microanalysis and Information Processing, University Politehnica of Bucharest, 313 Splaiul Independentei Street, sect 6, 060042, Bucharest, Romania

    R. Hristu, S. G. Stanciu & G. A. Stanciu

  2. Institute of Biophotonics, National Yang-Ming University, Taipei, 11221, Taiwan, R.O.C.

    F.-J. Kao

Authors
  1. R. Hristu
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  2. S. G. Stanciu
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  3. F.-J. Kao
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  4. G. A. Stanciu
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Correspondence to G. A. Stanciu.

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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

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