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Optics Express

Optics Express

  • Editor: Micha
  • Vol. 13, Iss. 23 — Nov. 14, 2005
  • pp: 9548–9555

290 and 340 nm UV LED arrays for fluorescence detection from single airborne particles

Kristina Davitt, Yoon-Kyu Song, William R. Patterson, III, Arto V. Nurmikko, Maria Gherasimova, Jung Han, Yong-Le Pan, and Richard K. Chang  »View Author Affiliations

Optics Express, Vol. 13, Issue 23, pp. 9548-9555 (2005)

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We demonstrate a compact system, incorporating a 32-element linear array of ultraviolet (290 nm and 340 nm) light-emitting diodes (LEDs) and a multi-anode photomultiplier tube, to the in-flight fluorescence detection of aerosolized particles, here containing the biological molecules tryptophan and NADH. This system illustrates substantial advances in the growth and fabrication of new semiconductor UV light emitting devices and an evolution in packaging details for LEDs tailored to the bio-aerosol warning problem. Optical engineering strategies are employed which take advantage of the size and versatility of light-emitting diodes to develop a truly compact fluorescence detector.

© 2005 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence
(220.4840) Optical design and fabrication : Testing
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Research Papers

Original Manuscript: September 1, 2005
Revised Manuscript: November 7, 2005
Published: November 14, 2005

Kristina Davitt, Yoon-Kyu Song, William Patterson III, Arto Nurmikko, Maria Gherasimova, Jung Han, Yong-Le Pan, and Richard Chang, "290 and 340 nm UV LED arrays for fluorescence detection from single airborne particles," Opt. Express 13, 9548-9555 (2005)

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