Stand-alone scattering optical device using holographic photopolymer
(Conference Presentation)

Jongchan Park; KyeoReh Lee; YongKeun Park

doi:10.1117/12.2213690

27 April 2016 Stand-alone scattering optical device using holographic photopolymer (Conference Presentation)

Jongchan Park, KyeoReh Lee, YongKeun Park

Proceedings Volume 9717, Adaptive Optics and Wavefront Control for Biological Systems II; 971703 (2016) https://doi.org/10.1117/12.2213690
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

When a light propagates through highly disordered medium, its optical parameters such as amplitude, phase and polarization states are completely scrambled because of multiple scattering events. Since the multiple scattering is a fundamental optical process that contains extremely high degrees of freedom, optical information of a transmitted light is totally mingled. Until recently, the presence of multiple scattering in an inhomogeneous medium is considered as a major obstacle when manipulating a light transmitting through the medium. However, a recent development of wavefront shaping techniques enable us to control the propagation of light through turbid media; a light transmitting through a turbid medium can be effectively controlled by modulating the spatial profile of the incident light using spatial light modulator. In this work, stand-alone scattering optical device is proposed; a holographic photopolymer film, which is much economic compared to the other digital spatial light modulators, is used to record and reconstruct permanent wavefront to generate optical field behind a scattering medium. By employing our method, arbitrary optical field can be generated since the scattering medium completely mixes all the optical parameters which allow us to access all the optical information only by modulating spatial phase profile of the impinging wavefront. The method is experimentally demonstrated in both the far-field and near-field regime where it shows promising fidelity and stability. The proposed stand-alone scattering optical device will opens up new avenues for exploiting the randomness inherent in disordered medium.

Conference Presentation

Citation Download Citation

Jongchan Park, KyeoReh Lee, and YongKeun Park "Stand-alone scattering optical device using holographic photopolymer (Conference Presentation)", Proc. SPIE 9717, Adaptive Optics and Wavefront Control for Biological Systems II, 971703 (27 April 2016); https://doi.org/10.1117/12.2213690

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KEYWORDS

Geometrical optics

Near field optics

Scattering

Optical components

Light scattering

Wavefronts

Holography

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