期刊
OPTICS LETTERS
卷 40, 期 12, 页码 2747-2750出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.40.002747
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- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Fundacao de Amparo a Pesquisa do Estado de Alagoas (FAPEAL)
- Instituto Nacional de Ciencia e Tecnologia de Informacao Quantica (INCT-IQ)
We produce coherence vortices experimentally and numerically due to the orbital angular momentum of light beams and study the dependence of their bright ring area and dark region on their different orders. This is a linear dependence with a slope proportional to the bright ring area or dark area. We show that it is possible to estimate any order of coherence vortices, including fractional orders, just by calculating the bright ring area or dark area of the vortices for some specific parameters of the incident beam. (C) 2015 Optical Society of America
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