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DOI | 10.1126/science.aay8683 |
Widely tunable compact terahertz gas lasers | |
Chevalier, Paul1; Amirzhan, Arman1; Wang, Fan2; Piccardo, Marco1; Johnson, Steven G.3,4; Capasso, Federico1; Everitt, Henry O.5,6 | |
2019-11-15 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 366期号:6467页码:856-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The terahertz region of the electromagnetic spectrum has been the least utilized owing to inadequacies of available sources. We introduce a compact, widely frequency-tunable, extremely bright source of terahertz radiation: a gas-phase molecular laser based on rotational population inversions optically pumped by a quantum cascade laser. By identifying the essential parameters that determine the suitability of a molecule for a terahertz laser, almost any rotational transition of almost any molecular gas can be made to lase. Nitrous oxide is used to illustrate the broad tunability over 37 lines spanning 0.251 to 0.955 terahertz, each with kilohertz linewidths. Our analysis shows that laser lines spanning more than 1 terahertz with powers greater than 1 milliwatt are possible from many molecular gases pumped by quantum cascade lasers. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496946200050 |
WOS关键词 | ENERGY-TRANSFER |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/226234 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Harvard Univ, Harvard John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 2.MIT, Dept Mech Engn, Cambridge, MA 02139 USA; 3.MIT, Dept Math, Cambridge, MA 02139 USA; 4.MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 5.US Army, Combat Capabil Dev Command Aviat & Missile Ctr, Redstone Arsenal, AL 35898 USA; 6.Duke Univ, Dept Phys, Durham, NC 27708 USA |
推荐引用方式 GB/T 7714 | Chevalier, Paul,Amirzhan, Arman,Wang, Fan,et al. Widely tunable compact terahertz gas lasers[J]. SCIENCE,2019,366(6467):856-+. |
APA | Chevalier, Paul.,Amirzhan, Arman.,Wang, Fan.,Piccardo, Marco.,Johnson, Steven G..,...&Everitt, Henry O..(2019).Widely tunable compact terahertz gas lasers.SCIENCE,366(6467),856-+. |
MLA | Chevalier, Paul,et al."Widely tunable compact terahertz gas lasers".SCIENCE 366.6467(2019):856-+. |
条目包含的文件 | 条目无相关文件。 |
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