Generating electromagnetic radiation in terahertz and millimeter range, involves providing non-linear medium, where provided medium is positioned in laser cavity of vertical external cavity surface emitting laser or another laser

摘要

Electromagnetic radiation generation involves providing a non-linear medium. The provided medium is positioned in a laser cavity of a vertical external cavity surface emitting laser (VECSEL) or another laser, preferably disk laser. The laser is operated in two or multi-color modes, where the terahertz radiation is generated in difference frequencies in the cavity. An independent claim is included for an apparatus for generating electromagnetic radiation in terahertz and millimeter range, which comprises a laser cavity integrated with a laser light source in form of VECSEL, a non-linear medium, and an agent for generating electromagnetic radiation.