ИСТИНА

The recent years have been marked by the appearance of outstanding scientific achievements in THz photonics. These achievements have touched upon a range of areas of science, and each of them involved discovery of phenomena and applications whose appearance would be impossible in other electromagnetic radiation/emission range. In my lecture I will start with the historical development of ideas about this type of radiation. Its history dates back to the time when research of the nature of electromagnetic radiation was first undertaken. I will also tell you about the latest achievements in the development of laser sources for this frequency range. The increase in their power, coherence and expansion of frequency range allowed scientists to observe new coherent and nonlinear effects, start the development of plasmone optics of THz frequency range. Physics of THz metamaterials, biological and medical applications occupy a considerable place along with applications in chemistry and the study of materials. I will also tell you how to generate powerful THz radiation at large distances and in different gaseous media.