Second-generation High-Order Harmonic Sources — From CPA to OPCPA
(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:
https://lup.lub.lu.se/record/4393556
- author
- Rudawski, Piotr LU
- supervisor
- opponent
-
- Prof. Cormier, Eric, Université de Bordeaux, France
- organization
- publishing date
- 2014
- 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 10:15:00
- ISBN
- 978-91-7473-940-4
- language
- English
- LU publication?
- yes
- id
- e37bf766-53d2-4289-b399-2eeff0243060 (old id 4393556)
- date added to LUP
- 2016-04-04 09:37:34
- date last changed
- 2018-11-21 20:54:26
@phdthesis{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}}, keywords = {{Optical parametric chirped pulse amplification; Fysicumarkivet A:2014:Rudawski; Chirped pulse amplification; High-order harmonic generation; Attosecond pulse}}, language = {{eng}}, school = {{Lund University}}, title = {{Second-generation High-Order Harmonic Sources — From CPA to OPCPA}}, url = {{https://lup.lub.lu.se/search/files/5374227/4393589.pdf}}, year = {{2014}}, }