Far-infrared free-electron lasers and their applications
Far-infrared free-electron lasers and their applications
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DOI：
10.1080/00107510902733856
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发表时间：
2009-03
影响因子：
2
通讯作者：
B. Murdin
中科院分区：
文献类型：
--
作者：
B. Murdin
基于射频直线加速器的自由电子激光提供了远红外辐射的重要来源，这使得无法以任何其他方式进行的激动人心的实验成为可能。Felix(荷兰Nieuwegein)、JFEL(美国弗吉尼亚州纽波特新闻)、FELBE(德国德累斯顿)、CLIO(法国巴黎)等设施以微焦耳的能量提供皮秒脉冲的中红外和远红外输出。它们在远红外中提供连续、宽的调谐，用于从约3到250μm波长的离散跃迁(同时覆盖中红外)的共振泵浦。这使得时间分辨光谱学、非线性光学和弱吸收光谱学成为可能。它们已被应用于凝聚态物理、物理化学和生物物理中的各种问题。我们对这些源的物理应用进行了综述。
Free-electron lasers based on radio-frequency linear accelerators provide an important source of far-infrared radiation which allow exciting experiments that cannot be performed in any other way. Facilities such as FELIX (Nieuwegein, The Netherlands), JFEL (Newport News VA, USA), FELBE (Dresden, Germany), CLIO (Paris, France) and others provide mid- and far-infrared output in picosecond pulses with micro-joules of energy. They give continuous, wide tuning in far-IR for resonant pumping of discrete transitions (with simultaneous coverage of mid-IR) from around 3 to 250 μm wavelength. This enables time-resolved spectroscopy, non-linear optics and spectroscopy of weak absorptions. They have been applied to a wide variety of problems in condensed matter physics, physical chemistry and biophysics. We review the physics applications of these sources.