| Quantum cascade laser element | |
| HIRAYAMA, HIDEKI; LIN, TSUNG-TSE | |
| 2014-06-25 | |
| 著作权人 | RIKEN |
| 专利号 | EP2747221A1 |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Quantum cascade laser element |
| 英文摘要 | [PROBLEM] To manufacture a quantum cascade laser (QCL) element having a reduced threshold current density (Jth) and an increased maximum operating temperature (Tmax). [SOLUTION] One embodiment of the present invention provides a THz-QCL element (1000) with a QCL structure (100), which is a semiconductor superlattice (100A) sandwiched between a pair of electrodes (20, 30). The semiconductor superlattice (100A) (QCL structure (100)) is provided with an active region (10) that emits THz range electromagnetic waves due to the transition of electrons between sub-bands during application of a voltage to the pair of electrodes, for example. The active region (10) has repeating unit structures (10U) of a thickness, which includes sets of a well layer (10W) and a barrier layer (10B) alternatingly laminated with each other, wherein the well layer (10W) is made of AlxGa1-xAs (where 0 |
| 公开日期 | 2014-06-25 |
| 申请日期 | 2012-08-01 |
| 状态 | 申请中 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/88309]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | RIKEN |
| 推荐引用方式 GB/T 7714 | HIRAYAMA, HIDEKI,LIN, TSUNG-TSE. Quantum cascade laser element. EP2747221A1. 2014-06-25. |
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