| Autor: |
Junhong Liu, Yunfei Xu, Rusong Li, Jinchuan Zhang, Ning Zhuo, Junqi Liu, Lijun Wang, Fengmin Cheng, Shuman Liu, Fengqi Liu, Quanyong Lu, Shenqiang Zhai |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Photonics, Vol 11, Iss 2, p 150 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2304-6732 |
| DOI: |
10.3390/photonics11020150 |
| Popis: |
The photonic crystal surface-emitting laser (PCSEL) has attracted much attention due to the advantages of a small far-field divergence angle and high output power. Here, we report a high-power terahertz (THz) photonic crystal laser with high beam quality through the optimization of the absorption boundary condition and the introduction of the symmetrically distributed electrodes. Single-mode surface emission at 3.4 THz with the maximum peak output power of 50 mW is demonstrated. Meanwhile, a high symmetric far-field pattern with C6 symmetry and a small divergence angle is achieved. In this device, the integration of the stable single-mode operation, high beam quality and high output power is realized, which may have great significance for practical applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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