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20172023
most citedDirect transfer of pump amplitude to parametric down-converted photons

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physics.optics2018

Controlled generation, manipulation and frequency conversion of broadband orbital angular momentum spectrum of asymmetric optical vortex beams

Sabir Ul Alam, A. Srinivasa Rao, Anirban Ghosh +2

We report on generation and control of tunable, broad orbital angular momentum (OAM) spectrum of a vortex beam. Using two spiral phase plates (SPPs), we have converted the Gaussian…