Abstract

In a recent work [Opt. Lett. 37, 4946 (2012)], the spin-to-orbital optical angular momentum conversion from a subwavelength slit having a circular shape has been reported. In particular, the conversion efficiency was claimed to be independent of the slit dichroism. Here, we correct such a statement and demonstrate that dichroism strongly influences the process of optical vortex generation.

© 2013 Optical Society of America

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References

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  1. P. F. Chimento, P. F. A. Alkemade, G. W. ‘t Hooft, and E. R. Eliel, Opt. Lett. 37, 4946 (2012).
    [CrossRef]
  2. P. F. Chimento, N. V. Kuzmin, J. Bosman, P. F. A. Alkemade, G. W. ‘t Hooft, and E. R. Eliel, Opt. Express 19, 24219 (2011).
    [CrossRef]
  3. L. Marrucci, C. Manzo, and D. Paparo, Phys. Rev. Lett. 96, 163905 (2006).
    [CrossRef]

2012 (1)

2011 (1)

2006 (1)

L. Marrucci, C. Manzo, and D. Paparo, Phys. Rev. Lett. 96, 163905 (2006).
[CrossRef]

‘t Hooft, G. W.

Alkemade, P. F. A.

Bosman, J.

Chimento, P. F.

Eliel, E. R.

Kuzmin, N. V.

Manzo, C.

L. Marrucci, C. Manzo, and D. Paparo, Phys. Rev. Lett. 96, 163905 (2006).
[CrossRef]

Marrucci, L.

L. Marrucci, C. Manzo, and D. Paparo, Phys. Rev. Lett. 96, 163905 (2006).
[CrossRef]

Paparo, D.

L. Marrucci, C. Manzo, and D. Paparo, Phys. Rev. Lett. 96, 163905 (2006).
[CrossRef]

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Figures (1)

Fig. 1.
Fig. 1.

(a) Map of polarization conversion efficiency η as a function of birefringent phase retardation Δ and dichroism parameter δ. (b) η versus δ for Δ=0, π/2, and π, which correspond to special cases of full-wave, quarter-wave, or half-wave dichroic plates, respectively.

Equations (3)

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Eout=E0eiωt(cosψsinψsinψcosψ)(δeik0nL00δeik0nL)(cosψsinψsinψcosψ)cσ.
Eout=E02[(δeiΔ2+δeiΔ2)cσ+(δeiΔ2δeiΔ2)ei2σψ(ϕ)cσ].
η=(1δ)22(1+δ2)cos2(Δ/2)+(1+δ)22(1+δ2)sin2(Δ/2).

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