Enhancement of near-infrared response of InGaAs photocathode through interaction of 1064 nm light with activated surface
文献类型：期刊论文
| 作者 | Z. Wang, Y. Zhang, S. Li, S. Tang, J. Zhang, Y. Qian, F. Shi, G. Jiao, H. Cheng and Y. Zeng |
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2023 |
| 卷号 | 619 |
| ISSN号 | 01694332 |
| DOI | 10.1016/j.apsusc.2023.156760 |
| 英文摘要 | To enhance the near-infrared response of InGaAs photocathodes, we proposed an improved activation recipe, including conventional Cs/O or Cs/NF3 activation with white light and a subsequent re-activation with 1064 nm light. In-situ activation, re-activation and characterization were performed to investigate the relationship between the spectral response and the emitting surface. Multiple activation experiments demonstrated that re-activation illuminated by the 1064 nm light after conventional Cs/O activation effectively enhanced the spectral response in the near-infrared range, e.g., by a factor of 2–6 at 1064 nm, and this recipe had no enhancement effect on the spectral response of the Cs/NF3 activated samples. After Cs/O activation, the surface barrier of the activation surface was further optimized through the interaction of the 1064 nm light with the activated surface during re-activation. The minor optimization of the surface barrier could significantly improve the tunneling probability of the electrons excited by the near-infrared light. Moreover, the 1064 nm near-infrared light in re-activation could not be replaced by ultraviolet-blue light, as the interaction of ultraviolet-blue light with the activated surface had minimal effect on the surface barrier. © 2023 Elsevier B.V. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/68006]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Z. Wang, Y. Zhang, S. Li, S. Tang, J. Zhang, Y. Qian, F. Shi, G. Jiao, H. Cheng and Y. Zeng. Enhancement of near-infrared response of InGaAs photocathode through interaction of 1064 nm light with activated surface[J]. Applied Surface Science,2023,619. |
| APA | Z. Wang, Y. Zhang, S. Li, S. Tang, J. Zhang, Y. Qian, F. Shi, G. Jiao, H. Cheng and Y. Zeng.(2023).Enhancement of near-infrared response of InGaAs photocathode through interaction of 1064 nm light with activated surface.Applied Surface Science,619. |
| MLA | Z. Wang, Y. Zhang, S. Li, S. Tang, J. Zhang, Y. Qian, F. Shi, G. Jiao, H. Cheng and Y. Zeng."Enhancement of near-infrared response of InGaAs photocathode through interaction of 1064 nm light with activated surface".Applied Surface Science 619(2023). |
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