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首页> 外文期刊>Physical review >Spin bath maser in a cryogenically cooled sapphire whispering gallery mode resonator
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Spin bath maser in a cryogenically cooled sapphire whispering gallery mode resonator

机译：低温冷却的蓝宝石耳语画廊模式谐振器中的旋转浴maser

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摘要

We report the observation of a mechanism of maser generation in an ensemble of intercoupled, inhomoge-neously broadened two-level systems, enhanced by high quality factor electromagnetic cavity modes. In this form of population inversion, an inseparable quantum system leads to cavity-enhanced stimulated emission arising from interactions within an ensemble of two-level systems, as opposed to a traditional ensemble of noninteracting identical three-level systems. The effect is observed in a cryogenically cooled whispering gallery mode sapphire resonator containing dilute Fe~(3+) impurity ions. These ions exhibit strong spin-lattice interaction, leading to both electron spin resonance broadening and phonon mediated spin-spin coupling. The maser effect is due to a |1/2> →|3/2> energy transition in an electron spin angular momentum observed at zero external magnetic field. Both continuous and oscillating regimes are observed with corresponding thresholds both in detuning frequency and incident power.
机译：我们报告了在高品质因数电磁腔模增强的相互耦合，互不相干的宽泛两级系统的整体中，maser生成机理的观察。在这种形式的总体反转中，不可分离的量子系统会导致空腔增强的受激发射，这是由两级系统集成体中的相互作用引起的，这与传统的非相互作用的相同三级系统集成体相反。在包含稀有Fe〜（3+）杂质离子的低温冷却耳语蓝宝石模式蓝宝石谐振器中观察到了这种效应。这些离子表现出很强的自旋-晶格相互作用，导致电子自旋共振变宽和声子介导的自旋-自旋耦合。 maser效应归因于在零外部磁场下观察到的电子自旋角动量中的| 1/2>→| 3/2>能量跃迁。在失谐频率和入射功率中均观察到具有相应阈值的连续和振荡形式。

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  • 来源
    《Physical review》 |2013年第23期|235104.1-235104.5|共5页
  • 作者

    J. Bourhill; K. Benmessai; M. Goryachev; D. L. Creedon; W. Farr; M. E. Tobar;

  • 作者单位

    ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia;

    ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia;

    ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia;

    ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia;

    ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia;

    ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia;

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  • 正文语种 eng
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  • 关键词

    cavity quantum electrodynamics; micromasers; magnetic anisotropy; ions and impurities: general;

    机译：腔量子电动力学微型激光器磁各向异性离子和杂质：一般;

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