ObservationofopticalgainfromNV−centerindiamondbyfemtosecondtransientabsorption

Chao Fang; Wenhao Wang; Qing Lou; Liangchao Chen; Yongsheng Hu; Chong-Xin Shan

doi:10.1080/26941112.2024.2449373

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ObservationofopticalgainfromNV−centerindiamondbyfemtosecondtransientabsorption

Research Article | Updated：2025-12-10

- ObservationofopticalgainfromNV−centerindiamondbyfemtosecondtransientabsorption
- Observation of optical gain from NV− center in diamond by femtosecond transient absorption
- Functional Diamond 2025年5卷第1期
- Affiliations：
  
  Key Laboratory of Material Physics Ministry of Education School of Physics Zhengzhou University
- Author bio：
- Funds：
- DOI：10.1080/26941112.2024.2449373
  中图分类号：
- 网络出版：2025-01-10，
  
  纸质出版：2025-01-10
- Accepted：
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Chao Fang, Wenhao Wang, Qing Lou, 等. ObservationofopticalgainfromNV−centerindiamondbyfemtosecondtransientabsorption[J]. Functional Diamond, 2025,5(1).

Chao Fang, Wenhao Wang, Qing Lou, et al. Observation of optical gain from NV− center in diamond by femtosecond transient absorption[J]. 2025, 5(1).
Chao Fang, Wenhao Wang, Qing Lou, 等. ObservationofopticalgainfromNV−centerindiamondbyfemtosecondtransientabsorption[J]. Functional Diamond, 2025,5(1). DOI： 10.1080/26941112.2024.2449373.

Chao Fang, Wenhao Wang, Qing Lou, et al. Observation of optical gain from NV− center in diamond by femtosecond transient absorption[J]. 2025, 5(1). DOI： 10.1080/26941112.2024.2449373.

摘要

Abstract

Single crystal diamonds with strong NV

−

luminescence were prepared by high-pressure high-temperature method and followed by electron irradiation and annealing process. The stimulated emission and gain characteristics of NV

−

diamond in femtosecond time scale are also studied using the transient absorption technique. Stimulated emission was observed at 660–800 nm

with an optical gain displayed in the range of 680–725 nm. Further test revealed that the optical gain lifetime is 3.5 ns and the gain coefficient is 0.16 cm

−1

demonstrating the potential realization of color center lasers.

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