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Generation of Short Intense Terahertz pulses Through Optical Rectification

Ekström, Carl LU (2015) PHYM01 20151
Department of Physics
Atomic Physics
Abstract
The lack of sources that generates intense THz pulses have in many years limited the field of THz science. Until recently intense THz pulses have been hard to generate using nonlinear crystals such as Lithium Niobate (LiNbO3) with high efficiency. In this thesis a method is presented for achieving short and intense THz pulses through optical rectification using the recently developed tilted pulsefront technique. This method involves using an amplified pulsed Ti:Sapphire laser and a LiNbO3 crystal. The thesis describes the theory behind THz generation and the practical steps required in order to implement it. The final design is portable and has a high conversion efficiency of 0.08% and intense THz pulses with energies up to 0.4 µJ were... (More)
The lack of sources that generates intense THz pulses have in many years limited the field of THz science. Until recently intense THz pulses have been hard to generate using nonlinear crystals such as Lithium Niobate (LiNbO3) with high efficiency. In this thesis a method is presented for achieving short and intense THz pulses through optical rectification using the recently developed tilted pulsefront technique. This method involves using an amplified pulsed Ti:Sapphire laser and a LiNbO3 crystal. The thesis describes the theory behind THz generation and the practical steps required in order to implement it. The final design is portable and has a high conversion efficiency of 0.08% and intense THz pulses with energies up to 0.4 µJ were generated. (Less)
Please use this url to cite or link to this publication:
author
Ekström, Carl LU
supervisor
organization
course
PHYM01 20151
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Terahertz, THz, Optical Rectification, OR, Photonics, Optics, LiNbO3
report number
LRAP 510 (2015)
language
English
id
8166742
date added to LUP
2015-11-16 21:42:20
date last changed
2015-11-16 21:42:20
@misc{8166742,
  abstract     = {The lack of sources that generates intense THz pulses have in many years limited the field of THz science. Until recently intense THz pulses have been hard to generate using nonlinear crystals such as Lithium Niobate (LiNbO3) with high efficiency. In this thesis a method is presented for achieving short and intense THz pulses through optical rectification using the recently developed tilted pulsefront technique. This method involves using an amplified pulsed Ti:Sapphire laser and a LiNbO3 crystal. The thesis describes the theory behind THz generation and the practical steps required in order to implement it. The final design is portable and has a high conversion efficiency of 0.08% and intense THz pulses with energies up to 0.4 µJ were generated.},
  author       = {Ekström, Carl},
  keyword      = {Terahertz,THz,Optical Rectification,OR,Photonics,Optics,LiNbO3},
  language     = {eng},
  note         = {Student Paper},
  title        = {Generation of Short Intense Terahertz pulses Through Optical Rectification},
  year         = {2015},
}