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Title: Fast reconstruction of a bounded ultrasonic beam using acoustically induced piezo-luminescence

We report on the conversion of ultrasound into light by the process of piezo-luminescence in epoxy with embedded BaSi{sub 2}O{sub 2}N{sub 2}:Eu as active component. We exploit this acoustically induced piezo-luminescence to visualize several cross-sectional slices of the radiation field of an ultrasonic piston transducer (f = 3.3 MHz) in both the near-field and the far-field. Simply combining multiple slices then leads to a fast representation of the 3D spatial radiation field. We have confronted the luminescent results with both scanning hydrophone experiments and digital acoustic holography results, and obtained a good correlation between the different approaches.
Authors:
; ; ;  [1] ;  [2]
  1. Mechanics of Materials and Structures MMS, Department of Materials Science and Engineering, Ghent University, Technologiepark 903, 9052 Zwijnaarde (Belgium)
  2. LumiLab, Department of Solid State Sciences, Ghent University, Krijgslaan 281-S1, 9000 Gent (Belgium)
Publication Date:
OSTI Identifier:
22486217
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 23; Other Information: (c) 2015 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; BEAMS; CORRELATIONS; EPOXIDES; HOLOGRAPHY; LUMINESCENCE; MHZ RANGE; PISTONS; TRANSDUCERS