Published January 1, 2009
| Version v1
Journal article
Coherent terahertz radiation from interaction of electron beam with rippled density plasma
- 1. Physics Department, Indian Institute of Technology, Delhi 110016 (India)
- 2. Center for Energy Studies, Indian Institute of Technology, Delhi 110016 (India)
Description
An alternative free electron laser concept for producing coherent terahertz radiation is investigated. A weakly relativistic electron beam impinged on a rippled underdense plasma, at an angle to the ripple wave vector, interacts with a seed terahertz signal to produce a space charge beam mode. The oscillatory electron velocity due to the beam mode beats with the density ripple to generate a coherent electromagnetic wave in the terahertz frequency range in forward direction. For an electron beam with 5 MW power, one can obtain ∼40 kW power at 1 THz frequency
Additional details
Identifiers
- DOI
- 10.1063/1.3065526;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 105
- Journal Issue
- 1
- Journal Page Range
- p. 013315-013315.5
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40059563
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- BEAM-PLASMA SYSTEMS; ELECTROMAGNETIC RADIATION; ELECTRON BEAMS; ELECTRONS; FREE ELECTRON LASERS; PLASMA; PLASMA DENSITY; PLASMA WAVES; RELATIVISTIC RANGE; SPACE CHARGE; THZ RANGE
- Descriptors DEC
- BEAMS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FREQUENCY RANGE; LASERS; LEPTON BEAMS; LEPTONS; PARTICLE BEAMS; RADIATIONS
Optional Information
- Notes
- (c) 2009 American Institute of Physics