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arXiv 2304.03217cond-mat.mtrl-sciphysics.app-phphysics.ins-det
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使用扩展速率方程模型探索室温金刚石微波激射器的自旋动力学

Exploring the Spin Dynamics of a Room-Temperature Diamond Maser using an Extended rate Equation Model

Yongqiang Wen, Philip L. Diggle, Neil McN. Alford, Daan M. Arroo

AI总结:

本文建立并数值求解扩展速率方程模型,分析室温金刚石微波激射器的自旋与激射动力学,提出腔体、谐振器及增益介质的优化方向。

摘要:

微波激射器(maser)是激光在微波波段的对应物,属于相干微波源,可充当振荡器或量子极限放大器。历史上,微波激射器需要高真空和低温条件才能运行,但近来基于金刚石的微波激射器已被证明可在室温室压下工作,从而为其作为超低噪声微波放大器的新型应用开辟了道路。为使这些新应用能够大规模实现,必须对金刚石微波激射器进行优化:尽量缩小尺寸、提高增益,并提高可放大信号的最大输入功率。本文中,我们建立并数值求解了一个扩展速率方程模型,以详细呈现微波激射动力学的现象学,并确定开发便携式微波激射器件所需的腔体、谐振器和增益介质的最佳特性。最后,我们就如何优化金刚石微波激射器中所用金刚石增益介质和介质谐振器的材料参数,以及如何进一步发展速率方程模型以纳入温度和氮浓度对自旋寿命的影响,提出了建议。

英文摘要:

Masers - the microwave analogue of lasers - are coherent microwave sources that can act as oscillators or quantum-limited amplifiers. Masers have historically required high vacuum and cryogenic temperatures to operate, but recently masers based on diamond have been demonstrated to operate at room temperature and pressure, opening a route to new applications as ultra-low noise microwave amplifiers. For these new applications to become feasible at a mass scale, it is important to optimise diamond masers by minimising their size and maximising their gain, as well as the maximum input power of signals that can be amplified. Here, we develop and numerically solve an extended rate equation model to present a detailed phenomenology of masing dynamics and determine the optimal properties required for the cavity, resonator and gain medium in order to develop portable maser devices. We conclude by suggesting how the material parameters of the diamond gain media and dielectric resonators used in diamond masers can be optimised and how rate equation models could be further developed to incorporate the effects of temperature and nitrogen concentration on spin lifetimes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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