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Transformation of Spatial Modulation of a Light Field into Amplitude Modulation in the Interaction of a Superposition of Transverse Modes of a He-Ne Laser with Iodine-127 Vapors

机译:He-Ne激光与碘127蒸气的横向模态叠加作用下光场的空间调制到幅度调制的转换

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摘要

The observation of "spatial-modulation" resonances of saturated absorption in the interaction of iodine- 127 vapors with a superposition of frequency-nondegenerate TEM_(01) and TEM_(10) transverse modes of a linear laser is reported. The modulation of the total radiation power of the probing wave, recorded at twice the beating frequency of transverse modes of the laser, is interpreted to be the result of the transformation of modulation of the spatial distribution of the field into its amplitude modulation under the action of nonlinearly absorbing iodine vapors. Resonances of saturated absorption of the weak line R(127)11-5 of iodine-127 (633 nm) in an extracavity cell are observed by the method proposed.
机译:报告了在碘-127蒸气与线性激光的频率非简并的TEM_(01)和TEM_(10)横模叠加的相互作用中饱和吸收的“空间调制”共振的观察结果。探测波的总辐射功率的调制(以激光器横向模式的跳动频率的两倍记录)被解释为是在作用下场的空间分布的调制转换为其幅度调制的结果。非线性吸收碘蒸气的过程。用所提出的方法观察了碘在腔中的弱线R(127)11-5(633 nm)的饱和吸收共振。

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