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Collinear Setup for Two-Color High Harmonic Generation

Budriunas, Rimantas LU (2013) FYSK01 20122
Atomic Physics
Department of Physics
Abstract
High harmonic generation (HHG) is a process in which extremely short bursts of coherent ultraviolet/soft x-ray radiation are generated by firing intense laser pulses into a dilute gas. During the long history of high harmonic generation research, several improvement schemes have been proposed. One of them was to use the driving laser pulse along with its second harmonic, which was found to raise generation efficiency and to enhance certain parameters of the harmonic radiation. This improved method is known as two-color high harmonic generation.

Two-color high harmonic generation requires precise control over the polarizations of the pulses and the time delay between them. At the Lund High Power Laser Facility this was previously done... (More)
High harmonic generation (HHG) is a process in which extremely short bursts of coherent ultraviolet/soft x-ray radiation are generated by firing intense laser pulses into a dilute gas. During the long history of high harmonic generation research, several improvement schemes have been proposed. One of them was to use the driving laser pulse along with its second harmonic, which was found to raise generation efficiency and to enhance certain parameters of the harmonic radiation. This improved method is known as two-color high harmonic generation.

Two-color high harmonic generation requires precise control over the polarizations of the pulses and the time delay between them. At the Lund High Power Laser Facility this was previously done by using a two-color interferometric setup which was tedious to align and it required major changes to the HHG setup to switch between normal and two-color HHG. The aim of this work was to design, construct and test a collinear optical system that would allow transforming a high harmonic generation experiment into a two-color high harmonic generation experiment quickly and with minimum effort.Within the course of the project, types of optical components adequate for such a system were identified. After performing numerical simulations of the optical properties of the system, optimal component parameters were chosen. The compact system was assembled and tested. (Less)
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author
Budriunas, Rimantas LU
supervisor
organization
course
FYSK01 20122
year
type
M2 - Bachelor Degree
subject
keywords
Collinear optical system, high harmonic generation, ultrashort pulses, two-color high harmonic generation, delay control, polarization control
language
English
id
3512546
date added to LUP
2013-03-07 19:51:12
date last changed
2013-03-07 19:51:12
@misc{3512546,
  abstract     = {High harmonic generation (HHG) is a process in which extremely short bursts of coherent ultraviolet/soft x-ray radiation are generated by firing intense laser pulses into a dilute gas. During the long history of high harmonic generation research, several improvement schemes have been proposed. One of them was to use the driving laser pulse along with its second harmonic, which was found to raise generation efficiency and to enhance certain parameters of the harmonic radiation. This improved method is known as two-color high harmonic generation. 

Two-color high harmonic generation requires precise control over the polarizations of the pulses and the time delay between them. At the Lund High Power Laser Facility this was previously done by using a two-color interferometric setup which was tedious to align and it required major changes to the HHG setup to switch between normal and two-color HHG. The aim of this work was to design, construct and test a collinear optical system that would allow transforming a high harmonic generation experiment into a two-color high harmonic generation experiment quickly and with minimum effort.Within the course of the project, types of optical components adequate for such a system were identified. After performing numerical simulations of the optical properties of the system, optimal component parameters were chosen. The compact system was assembled and tested.},
  author       = {Budriunas, Rimantas},
  keyword      = {Collinear optical system,high harmonic generation,ultrashort pulses,two-color high harmonic generation,delay control,polarization control},
  language     = {eng},
  note         = {Student Paper},
  title        = {Collinear Setup for Two-Color High Harmonic Generation},
  year         = {2013},
}