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Holographic femtosecond laser processing using optimal-rotation-angle method with compensation of spatial frequency response of liquid crystal spatial light modulator

机译:最佳旋转角法全息飞秒激光加工并补偿液晶空间光调制器的空间频率响应

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摘要

Holographic femtosecond laser processing performs high-speed parallel processing using a computer-generatedhologram (CGH) displayed on a liquid crystal spatial light modulator. A critical issue is to precisely control the intensities of the diffraction peaks of the CGH. We propose a method of compensating for the spatial frequency response in the design of CGH using the optimal-rotation-angle method. By applying the proposed method, the uniformity of the diffraction peaks was improved. We demonstrate holographic femtosecond laser processing with two-dimensional and three-dimensional parallelism.
机译:全息飞秒激光处理使用显示在液晶空间光调制器上的计算机生成的全息图(CGH)执行高速并行处理。一个关键问题是精确控制CGH衍射峰的强度。我们提出了一种使用最佳旋转角方法补偿CGH设计中的空间频率响应的方法。通过应用所提出的方法,改善了衍射峰的均匀性。我们演示了具有二维和三维平行度的全息飞秒激光加工。

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