摘要
An intensive, broad tunable monochromatic Terahertz (THz) emission is generated from S-doped (2 wt. %) GaSe (solid solution GaSe0.91S 0.09) crystals by collinear difference frequency generation method. The generated THz signal of 3.8 ns covers the spectral range of 0.57-3.57 THz (84.0-528.0 μm), with a maximal THz output peak power of 21.8 W at 1.62 THz. The THz power conversion efficiency is of 45% higher than that of undoped GaSe, which is mainly contributed to the improved optical properties. The terahertz source is of great potential to be exploited for the out-of-door applications due to the increased crystal hardness.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 081104 |
| 期刊 | Applied Physics Letters |
| 卷 | 103 |
| 期 | 8 |
| DOI | |
| 出版状态 | 已出版 - 19 8月 2013 |
| 已对外发布 | 是 |
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