| Autor: |
Manoochehr Koochesfahani, Marcos Dantus, Anton Ryabtsev, Shahram Pouya |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.2080238 |
| Popis: |
Measuring the speed and direction of vortices is of great importance in fluid dynamics. We report on the use of a CW laser beam with a superposition of Laguerre-Gaussian (LG) modes generated by a phase mask imprinted on a two-dimensional spatial light modulator. The shaped beam is then guided and scattered of a sample which is rotated; the rotational frequency is extracted from spectral analysis of the scattered light. This method allows for virtually real-time determination of vorticity characterization in a fluid. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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