Abstract
We present the results of research carried out for the first time, to the best of our knowledge, on the generation of terahertz radiation under the action of “single-color” and “dual-color” high-power femtosecond laser pulses on liquefied gas–liquid nitrogen. Our experimental results supported by careful theoretical interpretation showed clearly that under femtosecond laser radiation, liquid and air emit terahertz waves in a very different way. We assumed that the mobility of ions and electrons in liquid can play an essential role, forming a quasi-static electric field by means of ambipolar diffusion mechanism.
Original language | English |
---|---|
Pages (from-to) | 678-686 |
Number of pages | 9 |
Journal | Photonics Research |
Volume | 7 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jun 2019 |
Keywords
- PULSE GENERATION
- FEMTOSECOND
- TRANSFORMATION
- INTENSITY
- RADIATION
- EMISSION
OECD FOS+WOS
- 1.03.SY OPTICS