Temporal and spectral control of the X-ray pulses in a resonant medium with a modulated transition frequency
Temporal and spectral control of the X-ray pulses in a resonant medium with a modulated transition frequency
复制标题
具有调制跃迁频率的谐振介质中 X 射线脉冲的时间和光谱控制
DOI：
10.1117/12.2593321
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Kocharovskaya, Olga
中科院分区：
文献类型：
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作者：
Vagizov, Farit;Antonov, Vladimir;Khairulin, Ilias;Radeonychev, Yevgeny;Han, Kyong-Chol;Kocharovskaya, Olga
我们讨论了一种方法，用于控制X射线辐射的光谱和时间特性产生的放射性或同步辐射穆斯堡尔源通过其传播通过光学厚样品的共振核调制的过渡频率。这种调制通过由无后座力吸收器的振动引起的多普勒频移来实现。我们表明，这种技术可以用于有效消除共振吸收（声致透明）和时间塑造一个单独的光子，包括生产短脉冲。类似的技术可以用于在基于等离子体的X射线激光器的活性介质中形成和放大阿秒脉冲，其中离子的共振跃迁频率由足够强的红外场调制。
We discuss a method for controlling the spectral and temporal characteristics of x-ray radiation produced by a radioactive or synchrotron Mӧssbauer source via its propagation through an optically thick sample of resonant nuclei with a modulated transition frequency. Such modulation is achieved via a Doppler frequency shift due to vibration of the recoilless absorber. We show that this technique can be used both for effective elimination of the resonant absorption (acoustically induced transparency) and temporal shaping of an individual photon, including the production of short pulses. A similar technique can be used for formation and amplification of attosecond pulses in the active medium of a plasma-based x-ray laser, where the resonant transition frequency of ions is modulated by a sufficiently strong infrared field.