Observation of the orbital angular momentum spectrum of a light beam |
| |
| Authors: | Vasnetsov M V Torres J P Petrov D V Torner Lluis |
| |
| Affiliation: | ICFO-Institut de Ciencies Fotoniques, Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, 08034 Barcelona, Spain. vasnet@hotmail.com |
| |
| Abstract: | We demonstrate an experimental scheme that allows the elucidation of the orbital angular momentum discrete spectrum of an arbitrary light signal. The orbital angular momentum spectrum is represented in a Laguerre-Gaussian mode base, and the spectral components are resolved in the frequency domain by exploiting the Doppler frequency shift that is imparted to rotating light beams. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
