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Energy Transfer, Nanometer Crystals and Opfical Nano-probes

Published online by Cambridge University Press:  15 February 2011

Weihong Tan  and
Kopelman Kopelnan
Weihong Tan
Affiliation:
Department of Chemistry, The University of Michigan Ann Arbor, Michigan 48109
Kopelman Kopelnan
Affiliation:
Department of Chemistry, The University of Michigan Ann Arbor, Michigan 48109
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Abstract

Nanometer light and exciton sources and probes have been prepared by adding various inorganic and organic crystals and molecularly doped polymers to micropipettes and nanofabricated optical fiber tips. Specifically, a new nanotechnology, near-field photonanofabrication, has been developed, leading to a thousandfold miniaturization of immobilized Fiber Optical Chemical Sensors and to a billionfold decrease in necessary sample volume. The response time has also been shortened by a factor of at least 100. Applications of these subwavelength probes include biological single cell analysis, supertip development, Förster-energy transfer and Kasha quenching phenomena at the interface between the positionally controlled nanocrystal tip and its photoactive environment. Practically, this leads to enhanced sensitivity of optical probes, nano-optical chemical sensors and near-field exciton light sources.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 290: Symposium N – Dynamics in Small Confining Systems , 1992 , 287
Copyright
Copyright © Materials Research Society 1993

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References

1. Lieberman, K., Harush, S., Lewis, A. and Kopelman, R., Science, 247, 59 (1990).Google Scholar
2. Kopelman, R., Smith, S., Tan, W., Zenobi, R., Lieberman, K. and Lewis, A., SPIE, 1637, 33 (1992).Google Scholar
3. Tan, W., Shi, Z-Y., Smith, S., Bimbaum, D. and Kopelman, R., Science, 258, 778 (1992).Google Scholar
4. Wise, D. and Wingard, L., Biosensors with Fiberoptics, (Humana Press, Clifton, New Jersey, 1991).Google Scholar
5. Kopelman, R., Science, 241, 1620 (1988).Google Scholar
6. Tan, W., Kopelman, R., Lieberman, K. and Lewis, A., in Dynamics in Small Confining Systems, edited by Drake, J. M., Klafter, J. and Kopelman, R., (Materials Research Society: Pittsburgh, PA., 1990), p. 195.Google Scholar
7. Vogelmann, T. C., Knapp, A. K., McClean, T. M. and Smith, W. K., Physiologia Plantarum, 72, 623 (1988).Google Scholar
8. Betzig, E., Troutman, J. K., Harris, T. D., Weiner, J.S., and Kostelak, R. L., Science, 251, 1468 (1991).Google Scholar
9. Tan, W., Shi, Z-Y. and Kopelman, R., Anal. Chem., 64(22) (1992).Google Scholar
10. Nau, H. and Scott, W. J., Arch. Toxicol., Suppl. 11, 128 (1987).Google Scholar
11. Agranovich, V. M. and Galanin, M. D., Electronic Excitation E Transfer on Condensed Matter, (North Holland, Amsterdam, 1982).Google Scholar
12. Francis, A. H. and Kopelman, R., Excitation Dynamics in Molecular Solids, Tpics in Applied Physics. Laser Spectroscopy of Solids, 2nd edition, Yen, W. M. and Selzer, P. M., eds, (Springer-Verlag, Berlin, 1986) 49, 241.Google Scholar
13. Kasha, M., J. Chem. Phys., 20, 71 (1952).Google Scholar
14. Roberts, G.., Ed. Langmuir-Blodgett Films, (Plenum Press, New York, 1990).Google Scholar
15. Pope, M., and Swenberg, E., Electronic Processes in Organic Crystals, (Oxford Univ. Press, New York, 1982).Google Scholar