Dynamic Speckle Imaging with Low-Cost Devices

Autor/inn/en	Vannoni, Maurizio; Trivi, Marcelo; Arizaga, Ricardo; Rabal, Hector; Molesini, Giuseppe
Titel	Dynamic Speckle Imaging with Low-Cost Devices
Quelle	In: European Journal of Physics, 29 (2008) 5, S.967-975 (9 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0143-0807
DOI	10.1088/0143-0807/29/5/010
Schlagwörter	Physics; Science Laboratories; College Science; Science Experiments; Light; Equations (Mathematics); Laboratory Equipment; Measurement Techniques; Photography; Optics + Suchen Sie Ihr Suchwort? Physik; Licht; Equations; Mathematics; Gleichungslehre; Laborausstattung; Messtechnik; Fotografie; Optik
Abstract	Light from a rough sample surface illuminated with a laser consists of a speckle pattern. If the surface evolves with time, the pattern becomes dynamic, following the activity of the sample. This phenomenon is used both in research and in industry to monitor processes and systems that change with time. The measuring equipment generally includes high-performance CCD cameras and other expensive devices. Based on the same principle, here we describe a simplified approach where components and devices commonly available in undergraduate physics laboratories are instead used. The technique is described in detail, also reviewing the basic properties of speckle fields. Examples of the application are given, and suggestions for further investigation are provided. (Contains 9 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10