Affiliation:
1. Institute of High Energy Physics
2. University of Chinese Academy of Sciences
3. Shanghai Normal University
4. National University of Defense Technology
5. Lanzhou University
6. The Institute for Advanced Studies of Wuhan University
Abstract
The generation of intense infrared radiation with a wavelength greater than 10 µm is limited by the optical materials in traditional methods or the laser-plasma parameters of plasma-bubble methods. In this study, we propose a new method for generating an intense longitudinal radiation field of tens of GV/m. By utilizing the oscillations of the electron film on the inner surface of the micro-tube, excited by the relativistic electron beam propagating within it, it is possible to obtain tunable long-wavelength few-cycle infrared radiation, ranging from 20 to 30 µm and even longer. The radiation source is guided entirely by a relativistic electron beam and formed a stable TM propagation mode in the micro-tube. This opens up new opportunities for applications of the relativistic intensity infrared radiation to high-field physics, shorter attosecond pulses generation and charged particle acceleration.
Funder
National Natural Science Foundation of China
Innovation Project of IHEP
the CAS Center for Excellence in Particle Physics
IHEP Innovation Grant
Chinese Academy of Science Focused Science Grant
Chinese Academy of Science Special Grant for Large Scientific Projects
National 1000 Talents Program of China
National Key Research and Development Program of China
Youth Innovation Promotion Association of the Chinese Academy of Sciences
Subject
Atomic and Molecular Physics, and Optics