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.
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