Generation of Short Intense Terahertz pulses Through Optical Rectification
Författare
Summary, in English
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.
Avdelning/ar
Publiceringsår
2015
Språk
Engelska
Fulltext
Dokumenttyp
Examensarbete för masterexamen (Två år)
Ämne
- Physics and Astronomy
- Technology and Engineering
Nyckelord
- Terahertz
- THz
- Optical Rectification
- OR
- Photonics
- Optics
- LiNbO3
Handledare
- Jörgen Larsson
Scientific presentation