Effect of Laser Spot Regulation on Evaluation of Laser Phosphors

Ling-li HEI; Shu-xing LI; Xuan CHENG; Rong-jun XIE

doi:10.37188/CJL.20210132

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Effect of Laser Spot Regulation on Evaluation of Laser Phosphors

Invited Paper | 更新时间：2021-10-17

- Effect of Laser Spot Regulation on Evaluation of Laser Phosphors
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 10, Pages: 1646-1652(2021)
- 作者机构：
  
  1.厦门大学　材料学院，福建　厦门　 361005
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51832005)
- DOI：10.37188/CJL.20210132
  CLC：
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Ling-li HEI, Shu-xing LI, Xuan CHENG, et al. Effect of Laser Spot Regulation on Evaluation of Laser Phosphors. [J]. Chinese Journal of Luminescence 42(10):1646-1652(2021)
DOI：

Ling-li HEI, Shu-xing LI, Xuan CHENG, et al. Effect of Laser Spot Regulation on Evaluation of Laser Phosphors. [J]. Chinese Journal of Luminescence 42(10):1646-1652(2021) DOI： 10.37188/CJL.20210132.

摘要

激光照明光源具有高功率密度、高亮度、长寿命等优点，逐渐成为固态照明领域新的研究热点。激光光斑大小对正确评价激光荧光材料的光学性能具有十分重要的影响，然而一直以来领域内缺乏对这一问题的深刻而系统认知。本文以Y,3,Al,5,O,12,∶Ce,3+,-Al,2,O,3,(YAG∶Ce-Al,2,O,3,)荧光薄膜为例，通过对蓝光激光激发荧光薄膜的光斑尺寸的调控，系统研究了激光荧光材料的最大输出光通量、发光饱和阈值、色温、色坐标、光均匀性等光学性能随光斑面积的变化情况，揭示了光斑大小对最大输出光通量、发光饱和阈值以及光均匀性的显著影响，这将对规范激光荧光材料的性能评价提供指导性思路。

Abstract

The newly-emerging laser lighting technology shows great advantages of high brightness, high luminous flux and long lifetime, which therefore attracts more attention for use in high-beam headlamps, cinema projectors and endoscopy. In this technology, the size of laser spots has a large effect on the proper evaluation of laser phosphors, but it is usually neglected and lack of deep investigations. In this paper, we conducted a survey on the influence of the spot size on the maximum output luminous flux, luminous saturation threshold, color temperature, color coordinates, and light uniformity of Y,3,Al,5,O,12,∶Ce,3+,-Al,2,O,3,(YAG∶Ce-Al,2,O,3,) phosphor films for laser lighting. It reveals that the laser spot size does have a vital effect on optical properties of laser phosphors, and needs to be carefully considered. This work provides a general guideline for standardizing the performance evaluation of laser phosphors.

关键词

激光照明激光荧光材料光斑调控光学性能

Keywords

laser lightinglaser phosphorlaser spot regulationoptical performance

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