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Applied Optics

Applied Optics


  • Vol. 22, Iss. 1 — Jan. 1, 1983
  • pp: 75–82

Radiation pattern of fluorescence from molecules embedded in small particles: general case

S. D. Druger and P. J. McNulty  »View Author Affiliations

Applied Optics, Vol. 22, Issue 1, pp. 75-82 (1983)

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A method is presented for calculating and analyzing the angular distribution of fluorescent emission from randomly oriented anisotropic molecules embedded in small dielectric particles with the nonzero reorientation angle between absorption and emission moments suggested by physical considerations now taken into account. Calculations performed on the basis of this method are compared with some of the available experimental data for fluorescent dye molecules embedded in microspheres, and good quantitative agreement is found. It is shown how fitting the computed results to experimental data determines an effective reorientation angle between absorption and emission transition moments. A more definitive test to which the model could be subjected is described.

© 1983 Optical Society of America

Original Manuscript: June 26, 1982
Published: January 1, 1983

S. D. Druger and P. J. McNulty, "Radiation pattern of fluorescence from molecules embedded in small particles: general case," Appl. Opt. 22, 75-82 (1983)

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  1. For a review, see P. J. McNulty, H. W. Chew, M. Kerker, in Aerosol Microphysics I. Topics in Current Physics, W. Marlow, Ed. (Springer, Berlin, 1980), Chap. 4.
  2. D. S. Wang, H. Chew, M. Kerker, Appl. Opt. 19, 2256 (1980). [CrossRef] [PubMed]
  3. S. L. McCall, P. M. Platzman, P. A. Wolff, Phys. Lett. A 77, 381 (1980). [CrossRef]
  4. P. J. McNulty, S. D. Druger, M. Kerker, H. W. Chew, Appl. Opt. 18, 1484 (1979). [CrossRef] [PubMed]
  5. D. S. Wang, M. Kerker, H. W. Chew, Appl. Opt. 19, 2315 (1980); the specific use made of these results is summarized briefly in the paragraph beginning with the words, “An analysis…” on p. 2321. [CrossRef] [PubMed]
  6. H. W. Chew, P. J. McNulty, M. Kerker, Phys. Rev. A 13, 396 (1976). [CrossRef]
  7. H. W. Chew, M. Kerker, P. J. McNulty, J. Opt. Soc. Am. 66, 44 (1976).
  8. W. Heitler, The Quantum Theory of Radiation (Oxford U.P., London, 1954), Chap. 5.
  9. H. Goldstein, Classical Mechanics (Addison-Wesley, Reading, Mass., 1950), p. 109; or 2nd Ed. (1980), p. 147.
  10. D. S. Wang, M. Kerker, H. W. Chew, Appl. Opt. 19, 2315 (1980). [CrossRef] [PubMed]
  11. We have also been able to show formally that this procedure is implied by assuming Eq. (2) to hold for elliptical polarization, but the physical argument given in the text is entirely adequate and more direct.
  12. J. P. Kratohvil, M.-P. Lee, M. Kerker, Appl. Opt. 17, 1978 (1978). [CrossRef] [PubMed]
  13. M.-P. Lee, “The Preparation and Optical Properties of Fluorescent Polymer Colloids,” Ph.D. Thesis, Clarkson College of Technology, Potsdam, New York (1977).
  14. E.-H. Lee, R. E. Benner, J. B. Fenn, R. K. Chang, Appl. Opt. 17, 1980 (1978). [CrossRef]
  15. E.-H. Lee, “Elastic and Inelastic Light Scattering from Small Spherical Particles with Plane Wave and Evanescent Wave Excitation,” Ph.D. Thesis, Yale University (1978).

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