학술논문

Transient THz stimulated emission from silicon pumped by FELs
Document Type
Conference
Source
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2017 42nd International Conference on. :1-1 Aug, 2017
Subject
Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Signal Processing and Analysis
Silicon
Stimulated emission
Free electron lasers
Pump lasers
Optical pumping
Language
ISSN
2162-2035
Abstract
Transient-type stimulated emission in the terahertz frequency range has been achieved from silicon crystals doped by phosphorus and bismuth donors under optical excitation by a few picosecond-long pulses generated by the infrared free electron lasers, FELIX and CLIO. The lasing emission occurs due to a population inversion based mechanism for different interpulse intervals (40 ns, 20 ns, 16 ns, 1 ns) and due to stimulated Raman scattering for interpulse intervals of 1 ns.