arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.04859physics.ins-detphysics.optics
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用于全息光刺激的新型空间光调制器的设计

Designing a new spatial light modulator for holographic photostimulation

Janelle C Shane, Douglas J McKnight, Adrian Hill, Kevin Taberski, Steve Serati

摘要:

在全息光刺激社区对速度和视野的需求的驱动下,我们设计、构建并测试了具有1536x1536正方形像素阵列和高压LC驱动的硅基液晶(LCoS)空间光调制器(SLM)。我们讨论了使MacroSLM成为可能的一些工程工作,包括用于处理巨大数据速率的定制FPGA板,用于最小化滚降和串扰的大像素尺寸,以及用于处理高压控制和高功率激光照明的热效应的温度控制。我们还设计了一个FPGA实现的方法来提高液晶切换速度,使我们能够克服重大的数据瓶颈,限制帧速率的大型阵列。我们展示了在1064 nm工作波长下的500 Hz全息图到全息图的速度,并讨论了这些速度和阵列尺寸所实现的新科学。

英文摘要:

Driven by the demands for speed and field of view in the holographic photostimulation community, we designed, built, and tested a liquid crystal on silicon (LCoS) spatial light modulator (SLM) with a 1536x1536 square pixel array and high-voltage LC drive. We discuss some of the engineering work that made the MacroSLM possible, including the custom FPGA board for handling huge data rates, the large pixel size for minimizing rolloff and crosstalk, and the temperature control to handle heating effects from the high-voltage controls and high-power laser illumination. We also designed an FPGA implementation of the overdrive method for increasing liquid crystal switching speed, allowing us to overcome the significant data bottlenecks that limit frame rates for large arrays. We demonstrate 500 Hz hologram-to-hologram speed at 1064 nm operating wavelength, and discuss the new science that these speeds and array sizes have enabled.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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