Digital holographic fractal speckle

It has been shown in previous studies that fractal speckles can be produced in an image plane by using as a pupil filter in the imaging system a spatial light modulator with an intensity transmittance obeying a negative power-law. However, this method has a disadvantage in that the intensity distrib...

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Bibliographic Details
Published in:Journal of optics (2010) 2013-03, Vol.15 (3), p.35704-1-8
Main Authors: Funamizu, Hideki, Uozumi, Jun, Aizu, Yoshihisa
Format: Article
Language:English
Subjects:
Digital
digital holography
fractal
Fractal analysis
Fractals
Holography
Pupils
Spatial light modulators
speckle
Transmittance
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Summary:It has been shown in previous studies that fractal speckles can be produced in an image plane by using as a pupil filter in the imaging system a spatial light modulator with an intensity transmittance obeying a negative power-law. However, this method has a disadvantage in that the intensity distributions of such speckles are very low due to the pupil filter giving a lower total transmittance. To overcome this disadvantage, we propose here the use of digital holography to generate fractal speckles. The theoretical background is explained briefly, and experimental results are shown.
ISSN:2040-8978
2040-8986
DOI:10.1088/2040-8978/15/3/035704