Park G Barratt, Field Robert W
Institute for Physical Chemistry, University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany.
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
J Chem Phys. 2016 May 28;144(20):200901. doi: 10.1063/1.4952762.
Since its invention in 2006, the broadband chirped pulse Fourier transform spectrometer has transformed the field of microwave spectroscopy. The technique enables the collection of a ≥10 GHz bandwidth spectrum in a single shot of the spectrometer, which allows broadband, high-resolution microwave spectra to be acquired several orders of magnitude faster than what was previously possible. We discuss the advantages and challenges associated with the technique and look back on the first ten years of chirped pulse Fourier transform spectroscopy. In addition to enabling faster-than-ever structure determination of increasingly complex species, the technique has given rise to an assortment of entirely new classes of experiments, ranging from chiral sensing by three-wave mixing to microwave detection of multichannel reaction kinetics. However, this is only the beginning. Future generations of microwave experiments will make increasingly creative use of frequency-agile pulse sequences for the coherent manipulation and interrogation of molecular dynamics.
自2006年发明以来，宽带啁啾脉冲傅里叶变换光谱仪彻底改变了微波光谱学领域。该技术能够在光谱仪单次测量中收集≥10 GHz带宽的光谱，这使得宽带、高分辨率微波光谱的采集速度比以前快几个数量级。我们讨论了该技术的优点和挑战，并回顾了啁啾脉冲傅里叶变换光谱学的头十年。除了能够以前所未有的速度确定日益复杂的物种结构外，该技术还催生了一系列全新的实验类别，从三波混频的手性传感到多通道反应动力学的微波检测。然而，这仅仅是个开始。未来的微波实验将越来越创造性地利用频率捷变脉冲序列来对分子动力学进行相干操纵和探测。
