多焦点产品
Holo / Or有多种解决方案满足沿光轴的多焦点需求：
多焦点衍射光学元件（DOE）允许单个入射光束沿传播轴同时在多个不同的焦距上聚焦。
从准直的输入光束（单模或多模），输出光束聚焦在特定数量的焦距上，焦距是在多焦点DOE设计期间根据客户的要求预先确定的。
多焦点DOE有两种配置：
- DOE由在其平面侧蚀刻的具有预定焦距的平凸透镜和衍射图案组成。
- 为了获得更大的灵活性，可以使用窗口DOE，以便在一定距离处获得焦点，用户在DOE之后添加常规的聚焦透镜。镜头焦距决定工作距离（WD）
多焦点DOE也可用作长焦元件，在诸如激光玻璃切割和激光微加工等应用中有效地增加了聚焦深度。
Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter! Click here for questions.
| PN | λ [nm] | Number of Foci | Distance between first to last foci [um] in foci medium | Availability | Remarks | Add to Quote | ||
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** Availability time may differ due to missing raw materials [*]: ask for simulations before ordering
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Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter!Click here for RFQ and questions
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Holo/Or offers Diffractive Optical Elements in a wide variety of wavelength between 180nm and 11um
For DOE solutions outside this range, please contact us for custom solutions.
| Materials | Fused Silica, ZnSe, Germanium 熔融石英， ZnSe，锗 |
|---|---|
| Wavelength range | 193nm 至 10.6um |
| DOE design | 2-level (binary) to 16-level 2级（二进制）到16级 |
| Diffraction efficiency | 86% - 96% |
| Element size | Few mm to 150mm 几毫米至150毫米 |
| Coating (optional) | AR/AR Coating 增透膜 |
| Custom Design | Almost any size 几乎任意尺寸 |
Features:
- 效率> 95％
- 焦点深度–可定制
- 焦点“圆柱体”上的光斑尺寸–接近衍射极限
- 高损伤阈值（熔融石英）
- 可选增透涂层
- 适用于不同波长
Applications:
- 切割
- 钻孔
- 显微镜检查
