학술논문

Tunable terahertz emission from an electron bunch interacting with modulated laser pulses
Document Type
Conference
Source
2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on. :1-1 Jun, 2007
Subject
Photonics and Electrooptics
Components, Circuits, Devices and Systems
Pulse modulation
Tunable circuits and devices
Electron emission
Optical pulses
Chirp modulation
Narrowband
Nonlinear optics
Optical modulation
Electron beams
Undulators
Language
Abstract
Summary form only given. A coherent narrowband tunable terahertz emission from an electron bunch is reported, transposing a technique well-known in nonlinear optics: interaction with laser pulses containing an internal modulation. The modulated pulses are produced from a titanium-sapphire laser using chirped pulse beating, and are focused on the electron beam, inside an undulator. The interaction leads to a modification of the energy distribution, which transforms into a charge density modulation when the electron bunch is deviated by the next bending magnet, and terahertz emission occurs.