Beam-shaping for Laser-based Additive and Subtractive-manufacturing Techniques (BLAST)

用于基于激光的增材和减材制造技术 (BLAST) 的光束整形

• 批准号: EP/N03368X/1
• 负责人: Benjamin Mills
• 金额: $ 109.8万
• 依托单位: University of Southampton
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN03368X%2F1
• 关键词: Beam; shaping; Laser; based; Additive

Digital Micromirror Devices (DMDs) are the heart of the image-projection technology used in the modern cinema projectors. They are a 2D array of several million, micro-sized, computer-controllable mirrors, where each mirror can flip on its axis many thousands of times per second. When combined with a RGB light source, such as in a cinema, the device enables the projection of full-colour videos onto a screen. However, in recent years this projection technology has moved out of the cinema and into laboratories across the world, where it is assisting scientists in many research fields.At the Optoelectronics Research Centre, at the University of Southampton, scientists have been using this DMD technology to generate micron-sized intricate patterns of laser light, for the development of a range of novel subtractive (removing material) and additive (adding material) laser-based manufacturing processes. In this 5-year project, the team will be working with a wide range of industrial and academic partners, who see the potential for new and exciting manufacturing processes, as summarised below:SPI Lasers, a UK fibre laser company: A major advantage of using DMDs for shaping a laser beam is the extremely high speed at which light patterns can be generated, updated and modified. The team will be combining fibre laser technology with DMD technology to enable extremely high-repetition-rate beam shape and energy control, for applications in a wide range of manufacturing areas including the marking of high-value objects.M-Solv, a UK laser-integrator: Here, the team will be testing and optimising their technology using a wide range of industrial manufacturing lasers, and will develop a range of novel additive manufacturing processes for the micro-scale. The outcome will be additional manufacturing capability for UK companies.University Hospital Southampton: Recent scientific results have shown the ability to control the specialisation of human stem cells (e.g. to bone or to muscle) via intricately designed 2D surface structures. Working with Prof. Richard Oreffo, a founder of this field, the team will be using their technique to produce a range of bespoke surface-textured substrates that will enable biologists to further understand and control stem-cell specialisation for applications in regenerative medicine.University of Southampton: Metamaterials are a family of materials that offer amazingly unusual properties, such as the ability to bend light (for use as invisibility cloaks) or even slow it right down. However, scientists have yet to develop a cost-effective method for making such devices on centimetre or larger size-scales. The team will be investigating whether the DMDs combined with high-repetition-rate lasers can speed up the process and enable cost-effective manufacturing of cm-sized devices.Oxsensis, a UK company that develops sensors for extreme environments: The team intends to develop new manufacturing processes that will enable a new range of sensors for applications in industries such as Aerospace, Power Generation, and Oil and Gas. Specifically, the team will be using their recently demonstrated ability to laser-machine very accurately and rapidly in diamond, in order to develop new techniques for making sensors in a range of difficult-to-machine materials.

数字微镜器件 (DMD) 是现代电影放映机中使用的图像投影技术的核心。它们是由数百万个微型、计算机控制的镜子组成的二维阵列，其中每个镜子每秒可以绕其轴翻转数千次。当与 RGB 光源结合使用时（例如在电影院中），该设备可以将全彩视频投影到屏幕上。然而，近年来，这种投影技术已经走出电影院，进入世界各地的实验室，为许多研究领域的科学家提供帮助。在南安普顿大学的光电研究中心，科学家们一直在使用这种 DMD 技术产生微米级的复杂激光图案，用于开发一系列新型减材（去除材料）和增材（添加材料）激光制造工艺。在这个为期 5 年的项目中，该团队将与广泛的工业和学术合作伙伴合作，他们看到了令人兴奋的新型制造工艺的潜力，概述如下：SPI Lasers，一家英国光纤激光器公司：使用 DMD 塑造激光束的速度非常快，可以生成、更新和修改光图案。该团队将光纤激光器技术与 DMD 技术相结合，以实现极高重复率的光束形状和能量控制，适用于广泛的制造领域，包括高价值物体的打标。M-Solv，一家英国激光器-集成商：在这里，团队将使用各种工业制造激光器来测试和优化他们的技术，并将开发一系列新型的微尺度增材制造工艺。其结果将为英国公司带来额外的制造能力。 南安普顿大学医院：最近的科学结果表明，能够通过复杂设计的二维表面结构来控制人类干细胞的专业化（例如骨骼或肌肉）。该团队将与该领域的创始人 Richard Oreffo 教授合作，利用他们的技术生产一系列定制的表面纹理基材，使生物学家能够进一步了解和控制干细胞专业化，以应用于再生医学。南安普顿大学：超材料是一类材料，具有令人惊奇的不寻常特性，例如弯曲光线（用作隐形斗篷）甚至减慢光线速度的能力。然而，科学家们尚未开发出一种经济高效的方法来制造厘米级或更大尺寸的此类设备。该团队将研究 DMD 与高重复率激光器相结合是否可以加快工艺速度并实现厘米尺寸设备的经济高效制造。Oxsensis 是一家为极端环境开发传感器的英国公司：该团队打算开发新的制造工艺将使一系列新的传感器能​​够应用于航空航天、发电、石油和天然气等行业。具体来说，该团队将利用他们最近展示的非常准确和快速地对金刚石进行激光加工的能力，以开发在一系列难以加工的材料中制造传感器的新技术。

项目成果

Predictive Visualisation of Fibre Laser Machining via Deep Learning

通过深度学习实现光纤激光加工的预测可视化

• DOI: http://dx.10.1109/cleo/europe-eqec52157.2021.9542389
• 发表时间: 2021
• 作者: Courtier A

Modelling of fibre laser cutting via deep learning.

通过深度学习对光纤激光切割进行建模。

• DOI: 10.1364/oe.432741
• 发表时间: 2021-09-13
• 期刊: Optics express
• 影响因子: 3.8
• 作者: Alex Courtier;M. McDonnell;M. Praeger;J. Grant;C. Codemard;P. Harrison;B. Mills;M. Zervas
• 通讯作者: M. Zervas

All-optical spatial light modulator for reconfigurable silicon photonic circuits

用于可重构硅光子电路的全光空间光调制器

• DOI: http://dx.10.1364/optica.3.000396
• 发表时间: 2016
• 期刊: Optica
• 影响因子: 10.4
• 作者: Bruck R

Time-resolved imaging of flyer dynamics for femtosecond laser-induced backward transfer of solid polymer thin films

飞秒激光诱导固体聚合物薄膜向后转移的飞行器动力学的时间分辨成像

• DOI: http://dx.10.1016/j.apsusc.2016.11.120
• 发表时间: 2017
• 期刊: Applied Surface Science
• 影响因子: 6.7
• 作者: Feinaeugle M

Deep-Learning-Assisted Focused Ion Beam Nanofabrication.

深度学习辅助聚焦离子束纳米加工。

• DOI: http://dx.10.1021/acs.nanolett.1c04604
• 发表时间: 2022
• 期刊: Nano letters
• 影响因子: 10.8
• 作者: Buchnev O