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arXiv 1004.2875physics.opticsphysics.ins-det
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使用纯相位空间光调制器的可重构全衍射光学滤波器

Reconfigurable all-diffractive optical filters using phase-only spatial light modulators

Gladys Minguez-Vega, V. R. Supradeepa, Omel Mendoza-Yero, Andrew M. Weiner

摘要:

我们展示了一个可重构的光滤波器实现使用相位只有二维硅空间光调制器液晶。为了实现这一点,我们利用两种不同的方法,导致调制器中的两种不同的配置。第一个,基于空间图案化的衍射透镜,允许沿光轴获得所需的光谱,并且在第二个中,基于广义光谱仪,它被发现在光轴之外。实验结果与理论分析吻合较好,表明了该方法的有效性。

英文摘要:

We demonstrate a reconfigurable optical filter implemented using a phase-only two-dimensional liquid crystal on silicon spatial light modulator. To achieve this we utilize two different approaches leading to two different configurations in the modulator. The first one, based on a spatially patterned diffractive lens permits to obtain the desired spectrum along the optical axis and, in the second one, based on a generalized spectrometer, it is found outside of the optical axis. Experimental results show good agreement with the theory and indicate the validity of this technique.

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