Optical Spin-to-Orbital Angular Momentum Conversion in Inhomogeneous Anisotropic Media

by: L Marrucci, C Manzo, D Paparo

Physical Review Letters, Vol. 96, No. 16. (2006)

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Abstract

We demonstrate experimentally an optical process in which the spin angular momentum carried by a circularly polarized light beam is converted into orbital angular momentum, leading to the generation of helical modes with a wave-front helicity controlled by the input polarization. This phenomenon requires the interaction of light with matter that is both optically inhomogeneous and anisotropic. The underlying physics is also associated with the so-called Pancharatnam-Berry geometrical phases involved in any inhomogeneous transformation of the optical polarization.

@article{citeulike:2758321, abstract = {We demonstrate experimentally an optical process in which the spin angular momentum carried by a circularly polarized light beam is converted into orbital angular momentum, leading to the generation of helical modes with a wave-front helicity controlled by the input polarization. This phenomenon requires the interaction of light with matter that is both optically inhomogeneous and anisotropic. The underlying physics is also associated with the so-called Pancharatnam-Berry geometrical phases involved in any inhomogeneous transformation of the optical polarization.}, author = {Marrucci, L. and Manzo, C. and Paparo, D. }, citeulike-article-id = {2758321}, doi = {10.1103/PhysRevLett.96.163905}, journal = {Physical Review Letters}, keywords = {2006, cool, focus, optical, technique}, number = {16}, posted-at = {2008-05-05 17:05:27}, priority = {2}, publisher = {APS}, title = {Optical Spin-to-Orbital Angular Momentum Conversion in Inhomogeneous Anisotropic Media}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000096000016163905000001\&idtype=cvips\&gifs=yes}, volume = {96}, year = {2006} }

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TY - JOUR ID - citeulike:2758321 TI - Optical Spin-to-Orbital Angular Momentum Conversion in Inhomogeneous Anisotropic Media JF - Physical Review Letters VL - 96 IS - 16 PB - APS N2 - We demonstrate experimentally an optical process in which the spin angular momentum carried by a circularly polarized light beam is converted into orbital angular momentum, leading to the generation of helical modes with a wave-front helicity controlled by the input polarization. This phenomenon requires the interaction of light with matter that is both optically inhomogeneous and anisotropic. The underlying physics is also associated with the so-called Pancharatnam-Berry geometrical phases involved in any inhomogeneous transformation of the optical polarization. KW - 2006 KW - cool KW - focus KW - optical KW - technique AU - Marrucci, L AU - Manzo, C AU - Paparo, D PY - 2006/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000096000016163905000001&idtype=cvips&gifs=yes ER -

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