TY - GEN
T1 - Characterizing the azimuthal and radial mode indices of a laguerre-gaussian beam using diffraction from a triangular aperture
AU - Mourka, A.
AU - Mazilu, M.
AU - Shanor, C.
AU - Wright, E. M.
AU - Dholakia, K.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Recent studies have reported a new method for the determination of the azimuthal index (topological charge) ℓ of an optical vortex beam (eg. Optics Express 19, 5760-5771 (2011)). Here we consider the performance of such a system for determining both the azimuthal as well as radial indices of a Laguerre-Gaussian beam by measuring the far-field diffraction pattern from a tailored annular triangular aperture. Both a multi-annular triangle aperture and an annular triangle aperture with radial spokes are used.
AB - Recent studies have reported a new method for the determination of the azimuthal index (topological charge) ℓ of an optical vortex beam (eg. Optics Express 19, 5760-5771 (2011)). Here we consider the performance of such a system for determining both the azimuthal as well as radial indices of a Laguerre-Gaussian beam by measuring the far-field diffraction pattern from a tailored annular triangular aperture. Both a multi-annular triangle aperture and an annular triangle aperture with radial spokes are used.
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M3 - Conference contribution
SN - 9781557529176
T3 - Optics InfoBase Conference Papers
BT - Laser Science, LS 2011
T2 - Laser Science, LS 2011
Y2 - 16 October 2011 through 20 October 2011
ER -