OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 28 — Oct. 1, 1999
  • pp: 6087–6092

Investigation of the Laserlike Behavior of Polymeric Scattering Gain Media Under Subpicosecond Laser Excitation

Giannis Zacharakis, George Heliotis, George Filippidis, Demetrios Anglos, and Theodore G. Papazoglou  »View Author Affiliations


Applied Optics, Vol. 38, Issue 28, pp. 6087-6092 (1999)
http://dx.doi.org/10.1364/AO.38.006087


View Full Text Article

Acrobat PDF (255 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The narrowing effects of scatterers on the lifetime and the spectral width of the laser-induced fluorescence of organic dyes hosted in poly(methyl methacrylate) polymer sheets were studied. The excitation source was a distributed-feedback dye laser emitting 0.5-ps pulses at 496 nm. Spectral and temporal features were recorded simultaneously on a spectrograph–streak-camera detection system. The results were then compared with those obtained from dye solutions in methanol that were recorded in previous studies. The effects of the different host environments on the fluorescence characteristics of the dye were thus investigated. These effects are currently studied when the dye is inserted into human tissue in an attempt to boost tumor detection and photodynamic-therapy efficiency. Some initial results are presented.

© 1999 Optical Society of America

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.5180) Medical optics and biotechnology : Photodynamic therapy
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence
(170.7050) Medical optics and biotechnology : Turbid media

Citation
Giannis Zacharakis, George Heliotis, George Filippidis, Demetrios Anglos, and Theodore G. Papazoglou, "Investigation of the Laserlike Behavior of Polymeric Scattering Gain Media Under Subpicosecond Laser Excitation," Appl. Opt. 38, 6087-6092 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-28-6087


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvian, “Laser action in strongly scattering media,” Nature 368, 436–438 (1994).
  2. V. S. Letokhov, “Generation of light by a scattering medium with negative resonance absorption,” Sov. Phys. JEPT 26(4), 835–840 (1968).
  3. W. L. Sha, C. H. Liu, and R. R. Alfano, “Spectral and temporal measurements of laser action of Rhodamine 640 dye in strongly scattering media,” Opt. Lett. 19, 1922–1924 (1994).
  4. R. M. Balachandran and N. M. Lawandy, “Interface reflection effects in photonic paint,” Opt. Lett. 20, 1271–1273 (1995).
  5. W. Zhang, N. Cue, and K. M. Yoo, “Emission linewidth of laser action in random gain media,” Opt. Lett. 20, 961–963 (1995).
  6. J. Martorell, R. M. Balachandran, and N. M. Lawandy, “Radiative coupling between photonic paint layers,” Opt. Lett. 21, 239–241 (1996).
  7. S. John and G. Pang, “Theory of lasing in a multiple-scattering medium,” Phys. Rev. A 54, 3642–3652 (1996).
  8. R. M. Balachandran, N. M. Lawandy, and J. A. Moon, “Theory of laser action in scattering gain media,” Opt. Lett. 22, 319–321 (1997).
  9. D. S. Wiersma and A. Lagendijk, “Light diffusion with gain and random lasers,” Phys. Rev. E 54, 4256–4265 (1996).
  10. R. M. Balachandran, D. P. Pacheco, and N. M. Lawandy, “Laser action in polymeric gain media containing scattering particles,” Appl. Opt. 35, 640–643 (1996).
  11. M. Siddique, R. R. Alfano, G. A. Berger, M. Kempe, and A. Z. Genack, “Time-resolved studies of stimulated emission from colloidal dye solutions,” Opt. Lett. 21, 450–452 (1996).
  12. G. Zacharakis, D. Anglos, E. Vazgiouraki, and T. G. Papazoglou, “Temporal and spectral effects of scatterers on sub-picosecond laser-induced fluorescence of organic dyes,” in Conference on Lasers and Electro-Optics (CLEO/USA), Vol. 6 of OSA 1998 Technical Digest Series (Optical Society of America, Washington, D.C., 1998), paper Ctu99.
  13. U. Brackmann, “Lambdachrome laser dyes” (Lambda Physik GmbH, Göttingen, Germany, 1994).
  14. Th. M. Nieuwenhuizen and J. M. Luck, “Skin layer of diffusive media,” Phys. Rev. E 48, 569–588 (1993).
  15. P. W. Anderson, “The question of classical localization. A theory of white paint?” Philos. Mag. B 52(3), 505–509 (1985).
  16. S. John, “Localization of light,” Phys. Today 44(5), 32–40 (1991).
  17. M. Siddique, L. Yang, Q. Z. Wang, and R. R. Alfano, “Mirrorless laser action from optically pumped dye-treated animal tissues,” Opt. Commun. 117, 475–479 (1995).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article

OSA is a member of CrossRef.

CrossCheck Deposited