Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Dynamics of optical and X-ray responses of molecules
KTH, Superseded Departments, Biotechnology.
2002 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

The aim of this licentiatethesis is to investigate by means of theoretical simulationsthe dynamics of light scattering by molecules, with specialemphasis on molecules in gas phase and in solutions.

The first part of the thesisconcerns the two-photon absorption (TPA) process in the opticalwavelength region. A new dynamical theory for TPA of moleculesin solutions is developed. The roles of collisions with solventparticles, of pulse duration, of saturation effects and ofpropagation effects on the absorbing capacity of nonlinearmedia are analyzed which can promote a choice of new compoundsfor various applications.

The second part addresses thesoft X-ray region of exciting light, namely resonant X-rayRaman scattering (RXS). It is shown that collisional dephasingin solutions changes the physics of X-ray scattering. Anadditional, incoherent contribution to the RXS cross sectioncomes into play, resulting in a doubling of the spectrallines.

A theoretical analysis ofdissociative resonant photoelectron spectra of homonucleardiatomic molecules is performed. Special attention is paid tothe electron Doppler effect and to the role of the interferencebetween scattering channels on formation of an atomic-like partof the spectra.

The quantum oscillatorybehaviour for the vibrational collapse in the resonant Augerdecay of core excited nitrogen molecule is explored. Aone-phonon model is presented which opens a new possibility todetermine the equilibrium bond distance for a core excitedstates.

Place, publisher, year, edition, pages
Stockholm: Bioteknologi , 2002. , vi, 32 p.
Keyword [en]
two-photon absorption, collisional dephasing, resonant photoemission
Identifiers
URN: urn:nbn:se:kth:diva-1417ISBN: 91-7283-266-5 (print)OAI: oai:DiVA.org:kth-1417DiVA: diva2:7281
Note
NR 20140805Available from: 2002-05-07 Created: 2002-05-07Bibliographically approved

Open Access in DiVA

No full text

By organisation
Biotechnology

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 67 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf