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Title: Remote imaging of concealed objects

Optical detection of objects hidden behind opaque screening layers is a challenging problem. We demonstrate an optically detected echographic-like method that combines collimated acoustic and laser beams. The acoustic waves cross the screening layers and their back-reflection from the hidden objects is detected through the analysis of a dynamic laser speckle pattern created at the outer surface of the screening layer. Real-time remote detection of moving targets 15 meters away, with a few mm resolutions is demonstrated using a very sensitive camera detection scheme.
Authors:
;  [1]
  1. Soreq NRC, Yavne, 81800 (Israel)
Publication Date:
OSTI Identifier:
22311325
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1600; Journal Issue: 1; Conference: AIVELA 2014: 11. international conference on vibration measurements by laser and noncontact techniques, Ancona (Italy), 25-27 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAMERAS; DETECTION; LASER RADIATION; LAYERS; OPTICS; REAL TIME SYSTEMS; REFLECTION; RESOLUTION; SCREENING; SOUND WAVES; SURFACES