Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 8, 2013
|
|
---|---|---|
Article Number | 13007 | |
Number of page(s) | 6 | |
DOI | https://doi.org/10.2971/jeos.2013.13007 | |
Published online | 31 January 2013 |
Regular papers
Holographic superresolution using spatial light modulator
1
Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Nilore 45650 Islamabad, Pakistan
2
Departamento de Física, Universitat Autònoma de Barcelona, Bellaterra 08193 Barcelona, Spain
3
Departamento de Ciencia de Materiales, Óptica y Tecnología Electrónica, Universidad Miguel Hernández, 03202 Elche, Spain
Received:
19
October
2012
Revised:
30
November
2012
This paper describes a technique of superresolution using a reflective mode spatial light modulator, a coherent source of light, and a transmission mode object placed in the input plane of an imaging system, in particular we are using for the demonstration a 4f system. The spatial light modulator (SLM) enables for creating tilted plane wave illumination and it also permits adding constant phases of 0, π/2, 3π/2 and π. The angle of illumination created by the SLM is defined according to the dimension of aperture placed at the Fourier plane of 4f optical system. For each defined angle of illumination created by the SLM four holograms corresponding to the transmission mode object are recorded. This system is capable of retrieving phase and amplitude information of the images, corresponding to each impinging illumination. By simply adding these complex images a super resolved image is obtained.
Key words: Spatial light modulator (SLM) / super resolution / holography / coherent imaging
© The Author(s) 2013. All rights reserved.
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