【讲座回播+Q&A精选】滨松SLM升级算法详解，满满干货
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基于大量滨松空间光调制器（LCOS-SLM）在工业场景中的应用经验积累，并通过对全球最前沿应用研究的钻研和消化，2024年，滨松工程师将SLM算法进行了全新升级！为物体表面（点阵、异形平顶光等）、物体内部（激光倒角、激光打孔、加工波导、三维存储等）的SLM实际工业应用问题，提出了实实在在的解决方案，帮助工业用户通过滨松SLM对光实现更灵活的调控，最终获得更高的激光加工质量。
3月12日，滨松中国资深工程师王梓博士为大家带来了一场升级算法的全面介绍。相对于往年的算法解析，本次更加侧重从实际应用需求出发的算法讲解，并引入了AI、GPU等概念。
图1 滨松中国3场SLM算法讲座的对比
您可以在讲座中看到：
■ SLM与相位计算
■ SLM算法介绍：表面加工
■ SLM算法介绍：内部加工
■ 如何通过算法实现又快又准的加工
■ 滨松中国全新算法软件（开放售卖）
3月20日-22日，SLM最新700W产品及算法方案将在慕尼黑上海光博会亮相（点击阅览展前预告），欢迎各位莅临现场参观交流（上海新国际博览中心 W4.4305）。
图2 滨松SLM算法方案一览
针对免费部分，滨松中国将免费提供MATLAB算法源代码，方便用户掌握如何自己编写一些常见的代码。而对于收费部分，主要将提供基于MATLAB APP编写的相位图生成小程序，用户可输入参数/载入目标图片来生成相位图，默认不提供算法源代码，如有源代码需求，请与滨松中国销售人员联系沟通。
图3 Q&A精选问题，详情请见下文
图4 基于SLM的激光加工系统的常见4F光路（此处光路激光器为示例，滨松SLM可搭配多种不同波段、不同类型激光器）
图5 箭头位置是SLM之后产生贝塞尔光束的位置，然后经过L和MO组成的4F系统，成像在物体位置
图6 SLM衍射效率随着闪耀光栅周期的变化
文献列表
1.A practical algorithm for the determination of phase from image and diffraction plane pictures (1972)
2.Parallel direct laser writing in three dimensions with spatially dependent aberration correction（2010）
3.Kinoform design with an optimal-rotation-angle method（1994）
4.An adaptive approach for uniform scanning in multifocal multiphoton microscopy with a spatial light modulator（2012）
5.Large-Scale Uniform Optical Focus Array Generation with a Phase Spatial Light Modulator (2019)
6.Speckle-reduced holographic beam shaping with modified Gerchberg–Saxton algorithm(2019)
7.Independent phase and amplitude control of a laser beam by use of a single-phase-only spatial light modulator (2004)
8.Dynamic laser beam shaping for material processing using hybrid holograms(2017)
9.Phase hologram optimization with bandwidth constraint strategy for speckle-free optical reconstruction (2021)
10.Weighted Constraint Iterative Algorithm for Phase Hologram Generation (2020)
11.Phase hologram optimization with Speckle-free compact holographic near-eye display using camera-in-the-loop optimization with phase constraint(2022)
12.Bessel and annular beams for materials processing (2012)
13.High-aspect-ratio, high-quality microdrilling by electron density control using a femtosecond laser Bessel beam (2016)
14.Single-Shot High Aspect Ratio Bulk Nanostructuring of Fused Silica Using Chirp-Controlled Ultrafast Laser Bessel Beams(2014)
15.Realising high aspect ratio 10 nm feature size in laser materials processing in air at 800 nm wavelength in the far-field by creating a high purity longitudinal light field at focus (2022)
16.Shaping the on-axis intensity profile of generalized Bessel beams by iterative optimization methods (2018)
17.Two-photon polymerization of microstructures by a non-diffraction multifoci pattern generated from a superposed Bessel beam.(2017)
18.Generating flat-top beams with extended depth of focus (2018)
19.Protecting the Edge: Ultrafast Laser Modified C-shaped Glass Edges (2021)
20.High-quality tailored-edge cleaving using aberration-corrected Bessel-like beams (2018)
21.Airy beams and accelerating waves: An overview of recent advances (2021)
22.Observation of Accelerating Airy Beams (2007)
23.Ballistic dynamics of Airy beams (2008)
24.Parallel direct laser writing in three dimensions with spatially dependent aberration correction(2010)
25.Beam shaping for ultrafast materials processing (2019)
26.A 3D nanoscale optical disk memory with petabit capacity (2024)
27.Predictive aberration correction for multilayer optical data storage (2006)
28.Multifocal array with controllable polarization in each focal spot (2015)
29.Rapid Two-Photon Polymerization of an Arbitrary 3D Microstructure with 3D Focal Field Engineering （2019）
30.Simultaneous compensation for aberration and axial elongation in three-dimensional laser nanofabrication by a high numerical-aperture objective (2013)
31.Optimized hologram generation method for real-time spontaneous manipulation (2023)
32.Real-time optical micro-manipulation using optimized holograms generated on the GPU (2010)
33.Optimized hologram generation method for real-time spontaneous manipulation (2023)
34.Gerchberg-Saxton algorithm for fast and efficient atom rearrangement in optical tweezer Traps(2019)
35.DeepCGH: 3D computer-generated holography using deep learning (2020)
36.Two-photon polymerization of femtosecond high-order Bessel beams with aberration correction(2023)
37.In situ wavefront correction and its application to micromanipulation (2010)
38.Spherical aberration correction suitable for a wavefront controller （2009）
39.Adaptive optics for direct laser writing with plasma emission aberration sensing （2010）
40.Automated aberration correction of arbitrary laser modes in high numerical aperture systems （2016）
41.Ultrafast laser writing of homogeneous longitudinal waveguides in glasses (2008)
42.Three_dimensional_laser_microfabrication_in_diamond using dual adaptive optics system (2011)
43.Efficient full-path optical calculation of scalar and vector diffraction using the Bluestein method (2020)
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