3D diffractive elements through fs-laser direct writing

飞秒激光直写3D衍射元件

基本信息

项目摘要

Diffractive optical elements (DOEs) are powerful tools for shaping light into almost arbitrary patterns. They find increasing use in advanced laser material processing and imaging applications, for instance to parallelize and thus accelerate fabrication steps.DOEs are commonly made by etching micro-meter structures into the surface of a glass blank. However, it is known that they could be even more powerful and versatile if they were three-dimensional, i.e., if the structures were directly written into the bulk of a small glass slab. Such 3D DOEs could exhibit exquisite sensitivity to color and beam incidence angle, thus enabling a new class of optical elements. For instance, they could be made small enough to fit onto a microscopy glass slide and at the same time sufficiently sensitive to differentiate closely resembling cell types, solely from the light they reflect.Current limitations of realizing 3D DOEs of higher complexity are given by the required large computational costs as well as the lack of fabrication strategies that are sufficiently fast and capable of writing sub-micron sized voxels in millimetre depths. Our research aims to take significant steps towards the realization of 3D DOEs. We plan to develop new algorithms for their design as well as a novel fabrication approach which is apt to fulfil the high demands imposed by the fabrication task. Our approach will be based on parallel femtosecond-laser direct writing (FLDW), where many voxels are simultaneously produced by irradiating the material with short-pulsed laser foci. In the course of our project, we will address the design and production of DOEs with increasing difficulty and complexity. In three subsequent stages we will design and produce 2D, multilayer and finally 3D DOEs.
衍射光学元件(DOEs)是将光塑造成几乎任意图案的强大工具。它们在先进的激光材料加工和成像应用中越来越多地使用,例如并行化,从而加快制造步骤。do通常是通过在玻璃毛坯表面蚀刻微米结构制成的。然而,众所周知,如果它们是三维的,也就是说,如果这些结构直接写在一块小玻璃板上,它们可能会更加强大和通用。这种3D do可以对颜色和光束入射角表现出极高的灵敏度,从而成为一类新的光学元件。例如,它们可以做得足够小,可以放在显微镜玻片上,同时又足够灵敏,仅凭它们反射的光就能区分相似的细胞类型。目前实现更高复杂性的3D do的限制是由于所需的大量计算成本以及缺乏足够快的制造策略,并且能够在毫米深度中写入亚微米尺寸的体素。我们的研究旨在朝着实现3D do迈出重要的一步。我们计划为它们的设计开发新的算法以及一种新的制造方法,这种方法易于满足制造任务所施加的高要求。我们的方法将基于平行飞秒激光直接写入(FLDW),其中通过短脉冲激光聚焦照射材料同时产生许多体素。在我们的项目过程中,我们将解决越来越困难和复杂的do的设计和生产。在随后的三个阶段,我们将设计和生产2D,多层和最后的3D do。

项目成果

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Professor Dr.-Ing. Michael Schmidt其他文献

Professor Dr.-Ing. Michael Schmidt的其他文献

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{{ truncateString('Professor Dr.-Ing. Michael Schmidt', 18)}}的其他基金

Melt dynamics in remote laser material processing
远程激光材料加工中的熔体动力学
  • 批准号:
    407703212
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Spatially resolved detection of the scattering coefficient and the capillary network of tissue by using a random laser
使用随机激光对组织的散射系数和毛细血管网络进行空间分辨检测
  • 批准号:
    414732368
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Analysis of the interactions between the morphology and the properties of weld seams during laser transmission welding of plastics by a three-dimensional, spatially re-solved determination of the crystallinity of the weld seam by means of Raman microscopy
通过拉曼显微镜对焊缝结晶度进行三维空间分辨率测定,分析塑料激光透射焊接过程中焊缝形态和性能之间的相互作用
  • 批准号:
    399619237
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Three dimensional mapping of turbid media by hyper spectral imaging
通过高光谱成像对浑浊介质进行三维绘图
  • 批准号:
    337270237
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Beam shaping of ultrashort laser pulses by means of acousto-optic deflection and refraction
通过声光偏转和折射对超短激光脉冲进行光束整形
  • 批准号:
    278658739
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Transient Multi-Phase Modelling of Process Dynamics in Ultrafast Laser Ablation of Metals
金属超快激光烧蚀过程动力学的瞬态多相建模
  • 批准号:
    245510492
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Multi-Physics Modeling of Laser Beam Drilling with Temporally Shaped Pulses
使用时间整形脉冲进行激光束钻孔的多物理场建模
  • 批准号:
    278627194
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Arc-based ultra-short laser pulse assisted workpiece machining
基于电弧的超短激光脉冲辅助工件加工
  • 批准号:
    263891905
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Stress-related process know-how and process optimasiton of plastic welding unsing the example of laser transmission welding
以激光透射焊接为例,了解塑料焊接的应力相关工艺知识和工艺优化
  • 批准号:
    239632851
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Einbettende Stereolithogrphie - Prozessentwicklung zur Integration von Funktionselementen in mechatronischen Baugruppen
嵌入立体光刻 - 机电一体化组件中功能元件集成的工艺开发
  • 批准号:
    190972254
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似海外基金

Reconfigurable Diffractive Optical Neural Networks with Phase Change Material based Photonic Device
具有基于相变材料的光子器件的可重构衍射光学神经网络
  • 批准号:
    2316627
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Development of a Diffractive Analysis Method in Mathematics Education Research: Through Classroom Analysis Using ICT
数学教育研究中衍射分析方法的发展:利用信息通信技术进行课堂分析
  • 批准号:
    23K02484
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
FET: Small: LightRidge: End-to-end Agile Design for Diffractive Optical Neural Networks
FET:小型:LightRidge:衍射光神经网络的端到端敏捷设计
  • 批准号:
    2321404
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Continuing Grant
ERI: Sub-diffractive Optical Trapping Enabled by Deep-Learning-Assisted Metasurface Design
ERI:深度学习辅助超表面设计实现次衍射光捕获
  • 批准号:
    2138869
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Ground experiments for a large space telescope concept with multiple diffractive elements
具有多个衍射元件的大型太空望远镜概念的地面实验
  • 批准号:
    22H01273
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Ion-plasma etched nano-structured surfaces for high performance transmissive and diffractive elements in imaging/spectroscopic instruments for astronomy
离子等离子体蚀刻纳米结构表面,用于天文学成像/光谱仪器中的高性能透射和衍射元件
  • 批准号:
    2107947
  • 财政年份:
    2021
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    --
  • 项目类别:
    Standard Grant
Analysis of Diffractive Properties Based on Nonlinear Optical Effect of Dye-Doped Liquid Crystals
基于染料掺杂液晶非线性光学效应的衍射特性分析
  • 批准号:
    20J14875
  • 财政年份:
    2020
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    --
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
CASE Award Studentship: Super-Resolution Metrology Of Image-Forming Diffractive Waveguides For Augmented And Mixed Reality Displays
CASE 奖学生奖学金:用于增强和混合现实显示器的成像衍射波导的超分辨率计量
  • 批准号:
    2433182
  • 财政年份:
    2020
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    --
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Stuck at the bottom with who? A diffractive ethnography of 'stuckness' in a post industrial northern town.
和谁一起陷入低谷?
  • 批准号:
    2411782
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    2020
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Words, Music, Entanglements: Diffractive Readings of Contemporary Jazz Recordings
文字、音乐、纠葛:当代爵士乐唱片的衍射解读
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    2437920
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