Realization of UVB Lasing in High Quality Cubic ZnMgO Films

ZHANG Han; PEI Lei-lei; SU Shi-chen

doi:10.3788/fgxb20173807.0905

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Realization of UVB Lasing in High Quality Cubic ZnMgO Films

更新时间：2020-08-12

- Realization of UVB Lasing in High Quality Cubic ZnMgO Films
- Chinese Journal of Luminescence Vol. 38, Issue 7, Pages: 905-910(2017)
- 作者机构：
  
  广东省光电功能材料与器件重点实验室, 华南师范大学光电材料与技术研究所, 广东广州 510631
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China (61574063);Science and T
- DOI：10.3788/fgxb20173807.0905
  CLC： O484.4
- Received：07 March 2017，
  
  Revised：17 April 2017，
  
  Published：05 July 2017
- 稿件说明：
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张晗, 裴磊磊, 宿世臣. 高质量立方相ZnMgO的制备与紫外受激发射特性研究[J]. 发光学报, 2017,38(7): 905-910

ZHANG Han, PEI Lei-lei, SU Shi-chen. Realization of UVB Lasing in High Quality Cubic ZnMgO Films[J]. Chinese Journal of Luminescence, 2017,38(7): 905-910
张晗, 裴磊磊, 宿世臣. 高质量立方相ZnMgO的制备与紫外受激发射特性研究[J]. 发光学报, 2017,38(7): 905-910 DOI： 10.3788/fgxb20173807.0905.

ZHANG Han, PEI Lei-lei, SU Shi-chen. Realization of UVB Lasing in High Quality Cubic ZnMgO Films[J]. Chinese Journal of Luminescence, 2017,38(7): 905-910 DOI： 10.3788/fgxb20173807.0905.

摘要

利用脉冲激光沉积（PLD）设备在蓝宝石衬底上制备了高质量Zn

O单晶薄膜，并对其结构和光学特性进行了深入细致的研究。通过能量衍射谱（EDS）确认Zn

O薄膜的Mg组分为45%。在Zn

0.55

0.45

O薄膜的X射线衍射谱（XRD）中观测到了明显的位于36.67的衍射峰，对应的是（111）晶向的立方相ZnMgO。从透射光谱中可以看出，Zn

0.55

0.45

O具有陡峭的吸收边，没有发生相分离，在透射电镜图谱中也得到了证实。该ZnMgO薄膜还表现出了优异的光学特性，在Zn

0.55

0.45

O材料体系中实现了峰位位于310 nm的紫外光泵浦受激发射，其激光发射的阈值仅为22 kW/cm

。

Abstract

The optical and structural properties of high-quality epitaxial Zn

O films deposited by pulsed-laser deposition (PLD) were studied.Zn

O films with~45% Mg incorporation were measured by EDS (Energy dispersive spectroscopy).XRD (X-ray diffraction) measurement results show that Zn

0.55

0.45

O films have a cubic phase structure without phase separation and are epitaxial grown along the

-axis of Al

substrate.In the films

intense UVB optical pumped stimulated emission of this pure cubic-phase ZnMgO can be observed.The lasing threshold is about 22 kW/cm

.Lasing occurs at UVB wavelength of~310 nm under optical pumping.

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Keywords

references

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