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Two-photon-pumped amplified spontaneous emission and cavity lasing of an organic dye HEASPS in PHEMA polymer

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Abstract

Two-photon-absorption (TPA)-induced upconverted amplified spontaneous emission (ASE) and cavity lasing of a styrylpyridinium dye: trans-4-[p-(N-hydroxyethyl-N-ethylamino)styryl]-N-methylpyridinium p-toluene sulfonate (abbreviated as HEASPS) in poly(2-hydroxyethyl methacrylate) (abbreviated as PHEMA) polymer were observed under a picosecond pump condition. The spectral and temporal behaviors of TPA-induced fluorescence, ASE and cavity lasing were studied. The cavity lasing with a total oscillation time of more than 200 ps was achieved when pumped with 1064-nm, 50-ps laser irradiation. The population inversion could persist for three times longer than the duration of the pump pulse. The gain coefficients of the dye-doped polymer at various wavelengths were calculated based on cavity lasing spectra and one-photon fluorescence spectra.

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Authors and Affiliations

  1. Centre for Micro-Photonics, School of Biophysical Science and Electrical Engineering, Swinburne University of Technology, PO Box 218, Hawthorn, Victoria, 3122, Australia

    G.Y. Zhou

  2. State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, China

    G.Y. Zhou, D. Wang, Y. Ren, Z.S. Shao & M.H. Jiang

Authors
  1. G.Y. Zhou
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  2. D. Wang
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  3. Y. Ren
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  4. Z.S. Shao
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  5. M.H. Jiang
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Correspondence to G.Y. Zhou.

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PACS

78.20.Ek; 42.65.Ky; 42.65.Re; 78.47.+p

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Zhou, G., Wang, D., Ren, Y. et al. Two-photon-pumped amplified spontaneous emission and cavity lasing of an organic dye HEASPS in PHEMA polymer. Appl. Phys. B 79, 341–344 (2004). https://doi.org/10.1007/s00340-004-1568-5

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  • DOI: https://doi.org/10.1007/s00340-004-1568-5

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