Quadrant detector calibration for vortex beams.


This Letter reports an experimental and theoretical study of the response of a quadrant detector (QD) to an incident vortex beam, specifically a Laguerre-Gaussian (LG) beam. We have found that the LG beam response depends on the vorticity index ℓ. We compare LG beams with hard-ringed beams and find that at higher ℓ values, the QD response to LG beams can be… (More)
DOI: 10.1364/OL.36.000409


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@article{Hermosa2011QuadrantDC, title={Quadrant detector calibration for vortex beams.}, author={Nathaniel P Hermosa and Aurora Aiello and J. P. Woerdman}, journal={Optics letters}, year={2011}, volume={36 3}, pages={409-11} }