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arXiv 0704.1629cond-mat.mtrl-sci
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低温施主型半导体微波激射激活介质

Donor type semiconductor at low temperature as maser active medium

Yuri Kornyushin

摘要:

在一些半导体中,施主杂质原子可以吸引额外的电子,形成负施主杂质离子。因此,我们有3个能级的电子:零能级在底部的导电带,负能级的束缚电子的负施主杂质离子,和更深的负能级的外部电子的中性施主杂质原子。因此,施主杂质原子可以作为脉泽的活性中心。最大可实现相对群体为0.5。产生的振荡的典型波长为0.14 mm;三能级方案可以在相当低的温度下实现,大大低于6 K。

英文摘要:

In some semiconductors donor impurity atoms can attract additional electrons, forming negative donor impurity ions. Thus we have 3 energy levels for electrons: zero energy levels at the bottom of the conductivity band, negative energy levels of the bounded electrons of the negative donor impurity ions, and deeper negative energy levels of the outer electrons of the neutral donor impurity atoms. So the donor impurity atoms could serve as active centres for a maser. The maximum achievable relative population is 0.5. Typical wavelength of the generated oscillation is 0.14 mm; three level scheme could be realized at rather low temperatures, considerably lower than 6 K.

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