SOURCE terahertz radiation and method for generation of terahertz radiation

摘要

The present invention relates to a terahertz radiation source comprising a pulsed femtosecond fiber laser (1), a pulse shaper (2), an optical amplifier (3) and a nonlinear crystal (4), wherein the laser (1), pulse shaper (2), optical amplifier (3) and nonlinear crystal (4) are adapted and/or disposed in such a way that a laser pulse I, II, III, IV produced by the laser (1) first passes through the pulse shaper (2), then the optical amplifier (3) and then the nonlinear crystal (4); an imaging and/or spectroscopy system; a method for generating terahertz radiation; a method for detecting and/or examining life forms, objects and materials using such a system; and use of such a source and such a system.