Picosecond dynamics of laser-induced strain in graphite
(2011) In Physical Review B (Condensed Matter and Materials Physics) 84(4).- Abstract
- We report on the use of grazing-incidence time-resolved x-ray diffraction to investigate the evolution of strain in natural graphite excited by femtosecond-laser pulses in the fluence range of 6-35 mJ/cm(2). Strains corresponding to up to similar to 2.8% c-axis expansion were observed. We show that the experimental data is in good agreement with calculations based on the Thomsen strain model in conjunction with dynamical diffraction theory. Furthermore we find no evidence of nonthermal lattice expansion as reported in recent ultrafast electron-diffraction studies of laser-excited graphite conducted under comparable excitation conditions.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2093923
- author
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 84
- issue
- 4
- article number
- 045435
- publisher
- American Physical Society
- external identifiers
-
- wos:000292825100015
- scopus:79961205324
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.84.045435
- language
- English
- LU publication?
- yes
- id
- 34bacc3f-deff-4350-8be6-850630b59a4c (old id 2093923)
- date added to LUP
- 2016-04-01 12:58:16
- date last changed
- 2022-01-27 08:34:56
@article{34bacc3f-deff-4350-8be6-850630b59a4c, abstract = {{We report on the use of grazing-incidence time-resolved x-ray diffraction to investigate the evolution of strain in natural graphite excited by femtosecond-laser pulses in the fluence range of 6-35 mJ/cm(2). Strains corresponding to up to similar to 2.8% c-axis expansion were observed. We show that the experimental data is in good agreement with calculations based on the Thomsen strain model in conjunction with dynamical diffraction theory. Furthermore we find no evidence of nonthermal lattice expansion as reported in recent ultrafast electron-diffraction studies of laser-excited graphite conducted under comparable excitation conditions.}}, author = {{Harb, Maher and Jurgilaitis, Andrius and Enquist, Henrik and Nüske, Ralf and Schmising, C. v. Korff and Gaudin, J. and Johnson, S. L. and Milne, C. J. and Beaud, P. and Vorobeva, E. and Caviezel, A. and Mariager, S. O. and Ingold, G. and Larsson, Jörgen}}, issn = {{1098-0121}}, language = {{eng}}, number = {{4}}, publisher = {{American Physical Society}}, series = {{Physical Review B (Condensed Matter and Materials Physics)}}, title = {{Picosecond dynamics of laser-induced strain in graphite}}, url = {{https://lup.lub.lu.se/search/files/3077744/2426312.pdf}}, doi = {{10.1103/PhysRevB.84.045435}}, volume = {{84}}, year = {{2011}}, }