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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 15 — May. 20, 2007
  • pp: 3007–3012

Range-resolved optical detection of honeybees by use of wing-beat modulation of scattered light for locating land mines

David S. Hoffman, Amin R. Nehrir, Kevin S. Repasky, Joseph A. Shaw, and John L. Carlsten  »View Author Affiliations


Applied Optics, Vol. 46, Issue 15, pp. 3007-3012 (2007)
http://dx.doi.org/10.1364/AO.46.003007


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Abstract

An imaging lidar instrument with the capability of measuring the frequency response of a backscattered return signal up to 3.6 kHz is demonstrated. The instrument uses a commercial microchip frequency-doubled pulsed Nd:YAG laser with a 7.2 kHz pulse repetition rate, a pulse duration of less than 1 ns, and a pulse energy of greater than 10 μ J . A 15.2 c m commercial telescope is used to collect the backscattered signal, and a photomultiplier tube is used to monitor the scattered light. This instrument is designed for range- and angle-resolved optical detection of honeybees for explosives and land-mine detection. The instrument is capable of distinguishing between the scattered light from honeybees and other sources through the frequency content of the return signal caused by the wing-beat modulation of the backscattered light. Detection of honeybees near a bee hive and spatial mapping of honeybee densities near feeders are demonstrated.

© 2007 Optical Society of America

OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.3420) Remote sensing and sensors : Laser sensors

ToC Category:
Remote Sensing

History
Original Manuscript: November 20, 2006
Manuscript Accepted: January 9, 2007
Published: May 1, 2007

Citation
David S. Hoffman, Amin R. Nehrir, Kevin S. Repasky, Joseph A. Shaw, and John L. Carlsten, "Range-resolved optical detection of honeybees by use of wing-beat modulation of scattered light for locating land mines," Appl. Opt. 46, 3007-3012 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-15-3007

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