LECTURE 1: Generation of Terahertz laser　　　　

Reporter:Dr. Si-ZuoLuo

Time: 15:30 am, Oct. 28, 2015

Location: 504, Lecture Hall, the Life Sciences Building

Hosted by: Institute of Atomic and Molecular Physics

Abstract:

Terahertz laser contains the electromagnetic waves with frequency between 0.1THz to 10THz, corresponding to a wavelength from 3mm to 0.03mm (or 30μm), which have been widely used in atomic and molecular physics and materials physics. This report describes the main principles and methods on generation of terahertz laser by femtosecond laser interaction with gases and lithium niobate, which includes the laser-induced currents in the two-color laser field interaction with gas and optical rectification by femtosecond laser interaction with lithium niobate. The difference terahertz spectrum generated from different experimental methods has been discussed. The intense terahertz laser can be obtained by using these two methods with nice preparation of laser and targets, and the intense terahertz laser provide a solid foundation for further applications in atomic and molecular research.