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Speckle‐noise suppression due to a single ferroelectric liquid‐crystal cell |
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| Authors: | Alexander A. Andreev Tatiyana B. Andreeva Igor N. Kompanets Maxim V. Minchenko Eugeny P. Pozhidaev |
| Affiliation: | Lebedev Physical Institute of the Russian Academy of Science, 53 Leninsky Pr., Moscow 119991, Russia |
| Abstract: | Abstract— A novel principle and simple technique of suppressing the speckle noise in images displayed by a laser projection system is proposed. Wave coherence in a laser beam and speckles are destroyed in real time when the beam passes through a single FLC cell where spatially inhomogeneous phase light modulation takes place due to special FLC material and an electrical pulse regime. |
| Keywords: | Ferroelectric liquid crystal refractive index gradient spatially inhomogeneous structure phase light modulation speckle‐noise suppression |