Double Magnesium Donors as a Potential Active Medium in the Terahertz Range

IF 0.6 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER
R. Kh. Zhukavin, V. V. Tsyplenkov, K. A. Kovalevsky, Yu. A. Astrov, A. N. Lodygin, V. B. Shuman, L. M. Portsel, N. V. Abrosimov, V. N. Shastin
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Abstract

Experimental results on the observation of terahertz luminescence under optical excitation of silicon doped with neutral helium-like magnesium donors under photoionization conditions under uniaxial stress are presented. Possible options for creating stimulated radiation sources based on Si:Mg under optical excitation are considered. The possibility of obtaining inversion at the lowest odd level and significant gain coefficients is difficult due to the rather short relaxation time of the 2p0 level. The possibility of using an alternative inversion mechanism presupposes knowledge of relaxation routes. The mechanism of stimulated Raman scattering is theoretically considered and it is shown that terahertz stimulated radiation with optical excitation of double magnesium donors in silicon can be achieved using the mechanism of electronic-type Raman scattering.

Abstract Image

太赫兹范围内作为潜在活性介质的双镁捐献者
摘要 介绍了在单轴应力的光离子化条件下,对掺杂了中性类氦镁供体的硅进行光激发观测太赫兹发光的实验结果。考虑了在光激发条件下基于硅:镁创建受激辐射源的可能方案。由于 2p0 电平的弛豫时间很短,因此很难在最低奇数电平上获得反转和显著的增益系数。使用其他反转机制的可能性取决于对弛豫路径的了解。我们从理论上考虑了受激拉曼散射的机理,结果表明,利用电子型拉曼散射的机理,可以实现太赫兹受激辐射与硅中双镁供体的光激发。
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来源期刊
Semiconductors
Semiconductors 物理-物理:凝聚态物理
CiteScore
1.50
自引率
28.60%
发文量
131
审稿时长
3-6 weeks
期刊介绍: Publishes the most important work in semiconductor research in the countries of the former Soviet Union. Covers semiconductor theory, transport phenomena in semiconductors, optics, magnetooptics, and electrooptics of semiconductors, semiconductor lasers and semiconductor surface physics. The journal features an extensive book review section.
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