Article comprising an improved quantum cascade laser
文献类型：专利
| 作者 | SIRTORI, CARLO; SIVCO, DEBORAH LEE; CAPASSO, FEDERICO; FAIST, JEROME; CHO, ALFRED YI; HUTCHINSON, ALBERT LEE |
| 发表日期 | 1997-09-24 |
| 专利号 | EP0797280A1 |
| 著作权人 | LUCENT TECHNOLOGIES INC. |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Article comprising an improved quantum cascade laser |
| 英文摘要 | The disclosed improved quantum cascade (QC) laser comprises features that facilitate lasing at temperatures above 260K, preferably above 300K. Among the features is a wavefunction-increasing feature that enhances the amplitude of the lasing level wavefunction (3) in the adjacent upstream barrier layer, thereby increasing carrier injection efficiency into the lasing level. Exemplarily, the wavefunction-increasing feature is an approximately disposed thin quantum well (15). Among the features typically is also a chirped superlattice in the injection/relaxation region (12) that acts as a Bragg reflector to suppress escape of carriers from the lasing level into the continuum, while facilitating carrier extraction from the ground (2) state into a miniband, with the energy width of the miniband decreasing over at least a portion of the thickness of the injection/relaxation region. An InP top cladding layer is also used to optimize heat dissipation. |
| 公开日期 | 1997-09-24 |
| 申请日期 | 1997-03-12 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/66016]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | LUCENT TECHNOLOGIES INC. |
| 推荐引用方式 GB/T 7714 | SIRTORI, CARLO,SIVCO, DEBORAH LEE,CAPASSO, FEDERICO,et al. Article comprising an improved quantum cascade laser. EP0797280A1. 1997-09-24. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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