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Second-generation High-Order Harmonic Sources — From CPA to OPCPA

Rudawski, Piotr LU (2014)
Abstract
This thesis presents two sources of extreme ultraviolet (XUV) radiation based on

high-order harmonic generation (HHG) in gases. The sources were developed for

experiments requiring high-flux harmonic beams or HHG pulses at high-repetition

rate. These were used experimentally to image nano-scale objects. The high-flux HHG

source was used for digital in-line holography, and the high-repetition rate source for

photoemission electron microscopy. In addition, a conceptual design for a high-flux

gas beamline for a large scale facility, Extreme Light Infrastructure - Attosecond Light

Pulse Source, is described.



The work focuses on the construction and development of... (More)
This thesis presents two sources of extreme ultraviolet (XUV) radiation based on

high-order harmonic generation (HHG) in gases. The sources were developed for

experiments requiring high-flux harmonic beams or HHG pulses at high-repetition

rate. These were used experimentally to image nano-scale objects. The high-flux HHG

source was used for digital in-line holography, and the high-repetition rate source for

photoemission electron microscopy. In addition, a conceptual design for a high-flux

gas beamline for a large scale facility, Extreme Light Infrastructure - Attosecond Light

Pulse Source, is described.



The work focuses on the construction and development of the driving laser systems

and the HHG sources, as well as on the optimization of their performance. The thesis

describes the two lasers used to drive the HHG sources: a high-power laser system

and a newly built optical parametric chirped pulse amplification (OPCPA) system.

The two systems are both based on the chirped pulse amplification technique, but the

amplification process is carried out in different ways. The high-power laser system is

based on linear amplification in Ti:Sapphire while the OPCPA system uses nonlinear

amplification via difference frequency generation.



Furthermore, the use of multi-color driving fields to manipulate the generation process,

both from the microscopic and the macroscopic points of view, was investigated.

The combination of the fundamental field with its second harmonic in a non-collinear

geometry allows us to probe and control macroscopic properties. The addition of loworder

odd harmonics in a collinear geometry results in an enhancement of the single

atom response. (Less)
Please use this url to cite or link to this publication:
author
supervisor
opponent
  • Prof. Cormier, Eric, Université de Bordeaux, France
organization
publishing date
type
Thesis
publication status
published
subject
keywords
Optical parametric chirped pulse amplification, Fysicumarkivet A:2014:Rudawski, Chirped pulse amplification, High-order harmonic generation, Attosecond pulse
pages
219 pages
defense location
Lecture hall Rydbergsalen, Department of Physics, Professorsgatan 1, Lund University Faculty of Engineering
defense date
2014-05-09 10:15
ISSN
0281-2762
ISBN
978-91-7473-940-4
language
English
LU publication?
yes
id
e37bf766-53d2-4289-b399-2eeff0243060 (old id 4393556)
date added to LUP
2014-04-16 10:25:11
date last changed
2016-09-19 08:45:01
@misc{e37bf766-53d2-4289-b399-2eeff0243060,
  abstract     = {This thesis presents two sources of extreme ultraviolet (XUV) radiation based on<br/><br>
high-order harmonic generation (HHG) in gases. The sources were developed for<br/><br>
experiments requiring high-flux harmonic beams or HHG pulses at high-repetition<br/><br>
rate. These were used experimentally to image nano-scale objects. The high-flux HHG<br/><br>
source was used for digital in-line holography, and the high-repetition rate source for<br/><br>
photoemission electron microscopy. In addition, a conceptual design for a high-flux<br/><br>
gas beamline for a large scale facility, Extreme Light Infrastructure - Attosecond Light<br/><br>
Pulse Source, is described.<br/><br>
<br/><br>
The work focuses on the construction and development of the driving laser systems<br/><br>
and the HHG sources, as well as on the optimization of their performance. The thesis<br/><br>
describes the two lasers used to drive the HHG sources: a high-power laser system<br/><br>
and a newly built optical parametric chirped pulse amplification (OPCPA) system.<br/><br>
The two systems are both based on the chirped pulse amplification technique, but the<br/><br>
amplification process is carried out in different ways. The high-power laser system is<br/><br>
based on linear amplification in Ti:Sapphire while the OPCPA system uses nonlinear<br/><br>
amplification via difference frequency generation.<br/><br>
<br/><br>
Furthermore, the use of multi-color driving fields to manipulate the generation process,<br/><br>
both from the microscopic and the macroscopic points of view, was investigated.<br/><br>
The combination of the fundamental field with its second harmonic in a non-collinear<br/><br>
geometry allows us to probe and control macroscopic properties. The addition of loworder<br/><br>
odd harmonics in a collinear geometry results in an enhancement of the single<br/><br>
atom response.},
  author       = {Rudawski, Piotr},
  isbn         = {978-91-7473-940-4},
  issn         = {0281-2762},
  keyword      = {Optical parametric chirped pulse amplification,Fysicumarkivet A:2014:Rudawski,Chirped pulse amplification,High-order harmonic generation,Attosecond pulse},
  language     = {eng},
  pages        = {219},
  title        = {Second-generation High-Order Harmonic Sources — From CPA to OPCPA},
  year         = {2014},
}