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Longitudinal intensity distribution near the focus produced by light through scattering media

Optical Review, ISSN: 1349-9432, Vol: 24, Issue: 4, Page: 529-532
2017
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Article Description

Speckle pattern is formed when coherent light passes through scattering media. It has been demonstrated that after appropriately optimizing the phase of the incident light, a bright focal spot in the target point can be obtained for the case that the light passes through the scattering medium. However, until now the focused intensity distribution near the focus seems unclear. In this paper we experimentally investigate some factors influencing the longitudinal intensity distribution near the focus in details. It is shown that the desired longitudinal focused intensity distribution can be obtained by optimizing the incident light. The results may have potential applications in particle manipulation and laser processing, etc.

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