Backward-enhanced fluorescence from clusters of microspheres and particles of tryptophan

Measured fluorescence from single-particle clusters of dye-doped polystyrene microspheres, dried nonspherical particles of tryptophan, and single polystyrene microspheres is enhanced in the backward direction (180 degrees from the incident laser). This enhancement (a factor of 2-3 compared to 90 deg...

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Veröffentlicht in:Applied Optics 2002-05, Vol.41 (15), p.2994-2999
Hauptverfasser: Pan, Yong-Le, Hill, Steven C, Wolf, Jean-Pierre, Holler, Stephen, Chang, Richard K, Bottiger, Jerold R
Format: Artikel
Sprache:eng
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Zusammenfassung:Measured fluorescence from single-particle clusters of dye-doped polystyrene microspheres, dried nonspherical particles of tryptophan, and single polystyrene microspheres is enhanced in the backward direction (180 degrees from the incident laser). This enhancement (a factor of 2-3 compared to 90 degrees), which can be interpreted as a consequence of the reciprocity principle, increases with the particle refractive index.
ISSN:1559-128X
0003-6935
1539-4522
DOI:10.1364/AO.41.002994