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New paper in OSA Continuum showing Bessel beams with tunable control through maximum phase modulation


getThumbnail.cfmOur new publication is available in OSA Continuum Dynamic control of Bessel beams through high-phase diffractive axicon.

We present the realization of a high-phase diffractive axicon using a an SLM that exhibits 10π phase modulation. We compare the results with standard diffractive axicons with only 2π phase modulation. We show that high-phase modulation axicons generate Bessel beams with a shorter range and a smaller radius than standard axicons with the same period. We also find that the higher phase modulation regime provides improved diffraction efficiency since fringing effects are reduced. Dynamic control of Bessel beams is presented, controlled through the phase modulation dynamic range.

The paper has been done in collaboration with our friends at San Diego State University.


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Martes, 12 de mayo de 2020 Dejar un comentario Ir a comentarios
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