Advertisement

Commercial LED Pumped Organic Semiconductor Lasers

  • Yue WangEmail author
Chapter
Part of the Springer Theses book series (Springer Theses)

Abstract

Indirect electrical pumping of OSLs using a commercially available light-emitting diode is investigated in Chap. 5. To achieve this, low threshold organic laser materials and high power LEDs are required. A very promising gain material BBEHP-PPV was custom synthesized at the University of Strathclyde. Due to the general difficulty in the reproducing of the synthesis, the collaborators supplied various batches of the BBEHP-PPV polymer. Their photophysical and gain properties are studied in detail and the better batches are used to fabricate low threshold one-dimensional DFB lasers. A 448 nm peak emission Philips LUMILED GaN LED is a strong candidate for laser pumping as it has very high emitting intensity under pulsed operation. For the first time, an inorganic LED pumping an organic laser far above threshold is demonstrated in this chapter. The divergence of the output beam is measured as well as the dynamics of the polymer laser emission pulse. This pumping geometry provides a convenient and low-cost way to convert a divergent and incoherent light source into a near-collimated and coherent laser source.

Keywords

Effective Refractive Index Pump Intensity Holographic Grating Lead Pulse Laser Emission Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Samuel, I. D. W., & Turnbull, G. A. (2007). Organic semiconductor lasers. Chemical Reviews, 107(4), 1272–1295.CrossRefGoogle Scholar
  2. 2.
    McGehee, M. D., & Heeger, A. J. (2000). Semiconducting (conjugated) polymers as materials for solid-state lasers. Advanced Materials, 12(22), 1655–1668.CrossRefGoogle Scholar
  3. 3.
    Chénais, S., & Forget, S. (2011). Recent advances in solid-state organic lasers. Polymer International, 61(3), 390–406.CrossRefGoogle Scholar
  4. 4.
    Yang, Y., Turnbull, G. A., & Samuel, I. D. W. (2008). Hybrid optoelectronics: A polymer laser pumped by a nitride light-emitting diode. Applied Physics Letters, 92(16), 163306.ADSCrossRefGoogle Scholar
  5. 5.
    Flory, P. J. (1941). Molecular size distribution in three dimensional polymers I. Gelation. Journal of the American Chemical Society, 63(11), 3083–3090.CrossRefGoogle Scholar
  6. 6.
    Clarke-Pringle, T. L., & MacGregor, J. F. (1998). Optimization of molecular-weight distribution using batch-to-batch adjustments. Industrial and Engineering Chemistry Research, 37(9), 3660–3669.CrossRefGoogle Scholar
  7. 7.
    Donley, C. L., Zaumseil, J., Andreasen, J. W., Nielsen, M. M., Sirringhaus, H., Friend, R. H., et al. (2005). Effects of packing structure on the optoelectronic and charge transport properties in poly(9,9-di-n-octylfluorene-alt-benzothiadiazole). Journal of the American Chemical Society, 127(37), 12890–12899.CrossRefGoogle Scholar
  8. 8.
    Koynov, K., Bahtiar, A., Ahn, T., Cordeiro, R. M., Horhold, H. H., & Bubeck, C. (2006). Molecular weight dependence of chain orientation and optical constants of thin films of the conjugated polymer MEH-PPV. Macromolecules, 39(25), 8692–8698.ADSCrossRefGoogle Scholar
  9. 9.
    Winfield, J. M., Donley, C. L., & Kim, J. S. (2007). Anisotropic optical constants of electroluminescent conjugated polymer thin films determined by variable-angle spectroscopic ellipsometry. Journal of Applied Physics, 102(6), 063505.ADSCrossRefGoogle Scholar
  10. 10.
    Meier, M., Mekis, A., Dodabalapur, A., Timko, A., Slusher, R. E., Joannopoulos, J. D., et al. (1999). Laser action from two-dimensional distributed feedback in photonic crystals. Applied Physics Letters, 74(1), 7–9.ADSCrossRefGoogle Scholar
  11. 11.
    Barlow, G. F., Shore, A., Turnbull, G. A., & Samuel, I. D. W. (2004). Design and analysis of a low-threshold polymer circular-grating distributed-feedback laser. Journal of the Optical Society of America B, 21(12), 2142–2150.ADSCrossRefGoogle Scholar
  12. 12.
    Turnbull, G. A., Andrew, P., Barnes, W. L., & Samuel, I. D. W. (2003). Operating characteristics of a semiconducting polymer laser pumped by a microchip laser. Applied Physics Letters, 82(3), 313–315.ADSCrossRefGoogle Scholar
  13. 13.
    Samuel, I. D. W., Namdas, E. B., & Turnbull, G. A. (2009). How to recognize lasing. Nature Photonics, 3(10), 546–549.ADSCrossRefGoogle Scholar
  14. 14.
    Rose, A., Zhu, Z. G., Madigan, C. F., Swager, T. M., & Bulovic, V. (2005). Sensitivity gains in chemosensing by lasing action in organic polymers. Nature, 434(7035), 876–879.ADSCrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.School of Physics and AstronomyUniversity of St. AndrewsScotlandUK

Personalised recommendations