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  • Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing
  • OSA Technical Digest (CD) (Optica Publishing Group, 2008),
  • paper FThR7
  • https://doi.org/10.1364/FIO.2008.FThR7

Wavefront Manipulation Applying The Zeroth-order phase-contrast technique

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Abstract

A new phase-contrast technique is proposed to obtain a direct a wavefront manipulation using phase distributions modulated by spatial light modulators (SLMs) and binary diffractive optical elements (DOEs). The phase distribution is directly transformed into intensity distributions using a 4f optical correlator and an iris centered in the frequency plane as a spatial filter. This method allows the use of twisted nematic liquid-crystal televisions (LCTVs) operating in the real-time phase-mostly regime mode between 0 and π to generate high-intensity multiple beams for optical trap applications.

© 2008 Optical Society of America

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