期刊
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
卷 561, 期 -, 页码 48-56出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/15421406.2012.686710
关键词
Liquid crystals; orbital angular momentum; quantum information
资金
- Future and Emerging Technologies (FET) programme within the Seventh Framework Programme for Research of the European Commission, under FET-Open [255914]
The angular momentum of light can be split into a spin and an orbital component (SAM and OAM). A few years ago, an optical process involving a conversion of angular momentum from one form to the other was conceived and experimentally demonstrated in a singular patterned liquid crystal cell, also known as q-plate. In this paper, after reviewing the q-plate concept and technology, we will survey some of the most significant results that have originated from it, with particular attention to the possibility of realizing a physical one-to-one mapping between the polarization Poincare sphere and an OAM subspace of an optical beam or of a single photon.
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