Multimillijoule coherent terahertz bursts from picosecond laser-irradiated metal foils

• DOI: 10.1073/pnas.1815256116
• Publication Date: 2019-02-14T00:34:28Z
• Authors: Guoqian Liao; Yutong Li; Hao Liu; Graeme G. Scott; David Neely; Yihang Zhang; Baojun Zhu; Zhe Zhang; Chris Armstrong; Egle Zemaityte; Philip Bradford; Peter G. Huggard; Dean R. Rusby; Paul McKenna; Ceri M. Brenner; Nigel C. Woolsey; Weimin Wang; Zhengming Sheng; Jie Zhang
• Keywords: Picosecond

Significance Terahertz (THz) radiation, with frequencies spanning from 0.1 to 10 THz, has long been the most underdeveloped frequency band in electromagnetic waves, mainly due dearth of available high-power THz sources. Although last decades have seen a surge electronic and optical techniques for generating intense all sources reported until now failed produce above-millijoule (mJ) pulses. We present source that enables pulse energy up tens mJ, by using an laser irradiate metal foil.