LPR publishes our paper as back cover
Author : Zhen-Nan Tian

 Recent studies have demonstrated that femtosecond laser pulses have high potential in application to environmental science. Because of the properties of ultrafast, broadband and high power, the propagation of femtosecond laser pulses in air can lead to the generation of a strong field of 1013–1014W/cm2 with a large distance range from meter to kilometers. The strong laser field induces ionization and fragmentation of molecules in the laser propagation path, resulting in characteristic fingerprint emissions. In the paper, Prof. Huai-liang Xu and Prof. Hong-Bo Sun introduces the recent research advances in environmental sensing by using femtosecond laser pulses through strong-field-induced ionization and fragmentation of molecules.