相关实验视频

Updated: Jul 3, 2025

$Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing$

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

Published on: April 25, 2019

单个femtosecond脉冲写一个双焦镜头的双焦镜头

Xu Zhang, Lei Wang, Xiao-Wen Cao

|February 15, 2024

概括

一种基于激光的新方法通过结合表面剥离和散装修来制造双焦镜头. 这种技术简化了用于先进成像系统的微光元件生产.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学
激光制造业激光制造业激光制造业

背景情况:

制造像双焦镜片这样的微光元件通常涉及复杂的多步骤过程.
现有的方法在控制镜头参数方面可能缺乏效率或灵活性.

研究的目的:

介绍一种使用单次激光曝光制造双焦镜片的简化和高效方法.
为了证明控制双焦镜片参数的灵活性,例如面积比和中心偏移.

主要方法:

通过计算机生成全息图 (CGH) 使用带有轴向调节强度的秒激光器将其分成两个焦点.
在单次激光照射中同时诱导化表面和大量修饰化二氧化.
在酸 (HF) 中使用湿蚀刻来开发双焦镜片结构.

主要成果:

通过在蚀刻后将激光修饰的区域转化为光学元件,成功制造了双焦镜头.
通过CGH脉冲能量分配,对两个焦点区域的面积比率进行了灵活控制.
通过复制技术实现了具有中心偏移和凸透镜的双焦镜头.

结论:

提出的方法为制造双焦镜头和其他复杂的微光学元件提供了一种简化和高效的途径.
这种方法为集成成像系统和先进的光学表面制造开辟了可能性.

更多相关视频

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced In Vivo Imaging

Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced In Vivo Imaging

Published on: April 11, 2025

相关概念视频

Focusing of Light in the Eye

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...