The properties of the LASER with respect to self-organization are compared with the key features of the p-H2 pumped RASER. According to LASER theory the equations of motion for the LASER can be derived from the enslaving principle, i.e. the slowest-changing order parameter (the light field in the resonator) enslaves the rapidly relaxing atomic degrees of freedom. Likewise, it is shown here that the equations of motion for the p-H2 pumped RASER result from a set of order parameters, where the transverse magnetization of the RASER-active spin states enslaves the electromagnetic modes. The consequences are striking for nuclear magnetic resonance (NMR) spectroscopy, since long-lasting multi-mode RASER oscillations enable unprecedented spectroscopic resolution down to the micro-Hertz regime. Based on the theory for multi-mode RASER operation we analyze the conditions that reveal either the collapse of the entire NMR spectrum, the occurrence of self-organized frequency-combs, or RASER spectra which reflect the J-coupled network of the molecule. Certain RASER experiments involving the protons of 15N pyridine or 3-picoline molecules pumped with p-H2 via SABRE (Signal Amplification By Reversible Exchange) show either a single RASER oscillation in the time domain, giant RASER pulses or a complex RASER beat pattern. The corresponding 1H spectra consist of one narrow line, equidistant narrow lines (frequency-comb), or highly resolved lines reporting NMR properties, respectively. Numerous applications in the areas of material sciences, fundamental physics and medicine involving high precision sensors for magnetic fields, rotational motions or molecular structures become feasible.

中文翻译：

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从激光物理学到副氢泵浦 RASER

LASER 在自组织方面的特性与 p-H2 泵浦 RASER 的主要特征进行了比较。根据激光理论，激光的运动方程可以从奴役原理推导出来，即变化最慢的阶参数（谐振腔中的光场）奴役快速弛豫的原子自由度。同样，这里显示 p-H2 泵浦 RASER 的运动方程是由一组有序参数产生的，其中 RASER 活性自旋态的横向磁化奴役电磁模式。对于核磁共振 (NMR) 光谱而言，后果是惊人的，因为持久的多模式 RASER 振荡能够实现前所未有的低至微赫兹范围的光谱分辨率。基于多模式 RASER 操作的理论，我们分析了揭示整个 NMR 谱的崩溃、自组织频率梳的出现或反映分子 J 耦合网络的 RASER 谱的条件。某些涉及 15N 吡啶或 3-甲基吡啶分子的质子通过 SABRE（可逆交换信号放大）泵浦的 RASER 实验显示时域中的单个 RASER 振荡、巨大的 RASER 脉冲或复杂的 RASER 节拍模式。相应的 1H 谱分别由一条窄谱线、等距窄谱线（频率梳）或高分辨率谱线组成，分别报告 NMR 特性。在材料科学、基础物理学和医学领域的众多应用，包括高精度磁场传感器，