Optically Pumped Lasing from ZnO Nanorods Using Au as Reflection Mirror

ZHENG Zhong-kui; DUANMU Qing-duo; ZHAO Dong-xu

doi:10.3788/fgxb20123307.0764

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Optically Pumped Lasing from ZnO Nanorods Using Au as Reflection Mirror

更新时间：2020-08-12

- Optically Pumped Lasing from ZnO Nanorods Using Au as Reflection Mirror
- Chinese Journal of Luminescence Vol. 33, Issue 7, Pages: 764-767(2012)
- 作者机构：
  
  1. 长春理工大学理学院,吉林长春,130022
  2. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123307.0764
  CLC： O472.3;O482.31
- Received：06 March 2012，
  
  Revised：14 June 2012，
  
  Published Online：10 July 2012，
  
  Published：10 July 2012
- 稿件说明：
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郑仲馗, 端木庆铎, 赵东旭. 利用金作为反射镜的氧化锌纳米棒光泵激光 [J]. 发光学报, 2012,33(7): 764-767

ZHENG Zhong-kui, DUANMU Qing-duo, ZHAO Dong-xu. Optically Pumped Lasing from ZnO Nanorods Using Au as Reflection Mirror[J]. Chinese Journal of Luminescence, 2012,33(7): 764-767
郑仲馗, 端木庆铎, 赵东旭. 利用金作为反射镜的氧化锌纳米棒光泵激光 [J]. 发光学报, 2012,33(7): 764-767 DOI： 10.3788/fgxb20123307.0764.

ZHENG Zhong-kui, DUANMU Qing-duo, ZHAO Dong-xu. Optically Pumped Lasing from ZnO Nanorods Using Au as Reflection Mirror[J]. Chinese Journal of Luminescence, 2012,33(7): 764-767 DOI： 10.3788/fgxb20123307.0764.

摘要

通过水热法在溅射了一层金的Si片上生长了ZnO纳米棒。实验观察到ZnO纳米棒的室温光致发光谱中出现了强的紫外发射峰

同时还伴随有弱的缺陷相关的发射

这表明通过该种方法生长的ZnO纳米棒晶体质量较好。同时

通过光泵浦也观察到了ZnO纳米棒中的激光发射。当激发光功率密度超过阈值

且进一步增加时则出现多个发射峰

其积分强度随着激发功率密度的增大呈非线性增长

进一步表明存在受激发射。利用金属层作为反射镜可以进一步降低损耗

从而达到降低阈值的目的。

Abstract

ZnO nanorods were grown on a thin Au layer by hydrothermal method. In the photoluminescence (PL) spectrum

a strong UV emission and a weak deep-level emission were observed. The optically pumped lasing could be detected in ZnO nanorods. The integrated intensity of the spectra increases nonlinearly with the excitation power density

which indicated there exists the stimulated emission. And multi-mode emission peaks emerged when the excitation power density exceeded the threshold. Using Au layer as mirror

the light loss was further decreased

which resulted in the decrease of the laser threshold to 31.2 kW/cm

关键词

Keywords

references

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