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首页> 外文期刊>Optics and Lasers in Engineering >Embedded dots inside glass for optical film using UV laser of ultrafast laser pulse
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Embedded dots inside glass for optical film using UV laser of ultrafast laser pulse

机译：使用超快激光脉冲的UV激光在玻璃膜中嵌入点

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摘要

Microstructures are usually fabricated on the surface of optical sheets to improve the optical characteristics. In this study, a new fabrication process with UV (ultraviolet) laser direct writing method is developed to embed microstructures inside the glass. Then the optical properties of glass such as reflection and refraction indexes can be modified. Single- and multi-layer microstructures are designed and embedded inside glass substrate to modify the optical characteristics. Both luminance and uniformity can be controlled with the embedded microstructures. Thus, the glass with inside pattern can be used as a light guide plate to increase optical performance. First, an optical commercial software, FRED, is applied to design the microstructure configuration. Then, UV laser direct writing with output power 2.5-2.6 W, repetition rate 30 kHz, wave length: 355 nm, and pulse duration 15 ns is used to fabricate the microstructures inside the glass. The effect of dot pattern in the glass such as the dot pitch, the layer gap, and the number of layer on the optical performance is discussed. Machining capacity of UV laser ranges from micron to submicrometer; hence with this ultrafast laser pulse, objectives of various dimensions such as dot, line width, and layers can be easily embedded in the glass by one simple process. In addition, the embedded microstructures can be made with less contamination. Finally, the optical performance of the glasses with various configurations is measured using a Spectra Colorometer (Photo Research PR650) and compared with the simulated results.
机译：通常在光学片的表面上制造微结构以改善光学特性。在这项研究中，开发了一种采用紫外线（紫外线）激光直接写入方法的新制造工艺，以将微结构嵌入玻璃内部。然后可以修改玻璃的光学特性，例如反射率和折射率。设计了单层和多层微结构，并将其嵌入玻璃基板内部以修改光学特性。可以通过嵌入的微结构来控制亮度和均匀性。因此，具有内部图案的玻璃可以用作导光板以提高光学性能。首先，将光学商业软件FRED应用于设计微结构配置。然后，以输出功率为2.5-2.6 W，重复频率为30 kHz，波长为355 nm，脉冲持续时间为15 ns的UV激光直接写入来制造玻璃内部的微结构。讨论了玻璃中的点图案，例如点间距，层间隙和层数对光学性能的影响。紫外线激光的加工能力范围从微米到亚微米。因此，利用这种超快的激光脉冲，可以通过一个简单的过程轻松地将各种尺寸的物镜（例如点，线宽和层）嵌入玻璃中。另外，可以以较少的污染来制造嵌入的微结构。最后，使用Spectra色度计（Photo Research PR650）测量具有各种配置的眼镜的光学性能，并将其与模拟结果进行比较。

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  • 来源
    《Optics and Lasers in Engineering》 |2011年第7期|p.764-772|共9页
  • 作者

    C.T. Pan; Z.H. Liu; Y.J. Wu;

  • 作者单位

    Department of Mechanical and Electro-Mechanical Engineering, and Center for Nanoscience and Nanotechnology, National Science Council Core Facilities Laboratory for Nano-Science and Nano-Technology in Kaohsiung-Pingtung Area, National Sun Yat-Sen University, Kaohsuiung 804, Taiwan, ROC;

    Department of Mechanical and Electro-Mechanical Engineering, and Center for Nanoscience and Nanotechnology, National Science Council Core Facilities Laboratory for Nano-Science and Nano-Technology in Kaohsiung-Pingtung Area, National Sun Yat-Sen University, Kaohsuiung 804, Taiwan, ROC;

    Department of Mechanical and Electro-Mechanical Engineering, and Center for Nanoscience and Nanotechnology, National Science Council Core Facilities Laboratory for Nano-Science and Nano-Technology in Kaohsiung-Pingtung Area, National Sun Yat-Sen University, Kaohsuiung 804, Taiwan, ROC;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    UV laser; optical design; light guide plate; laser direct writing; embedded microstructure;

    机译：紫外线激光;光学设计;导光板;激光直写;嵌入式微结构;

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