59 citations · 139 across the 5 of their papers we have counts for
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physics.optics2017★ 56 cited
Efficient Modal Decomposition of Vortex Beams via Holographically Reconstructed Phase
Jasmine M. Knudsen, Samuel N. Alperin, Andrew A. Voitiv +3
We use phase-shifting digital holography to measure the amplitude and phase of twisted light. In our experiment, a spatial light modulator generates the studied vortex beams in add…
physics.optics2017★ 59 cited
The Angular Momentum of Topologically Structured Darkness
Samuel N. Alperin, Mark E. Siemens
We theoretically analyze and experimentally measure the extrinsic angular momentum contribution of topologically structured darkness found within fractional vortex beams, and show…