Abstract
We present a microscopic description of the excitation of coherent phonons as a response to femtosecond laser excitation. Using molecular dynamics simulations based on a tight-binding electronic Hamiltonian we discuss two examples of laser-induced coherent phonons: (1) excitation of the E 2g1 phonon mode in graphite under high external pressure and (2) the displacive excitation of two perpendicular phonon modes in carbon nanotubes. We discuss the influence of these coherent phonons on the ablation mechanisms.
| Original language | English |
|---|---|
| Pages (from-to) | 855-857 |
| Number of pages | 3 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 79 |
| Issue number | 4-6 |
| Publication status | Published - Sep 2004 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy (miscellaneous)
Cite this
Laser-induced coherent phonons in graphite and carbon nanotubes : Model and simulations. / Garcia, M. E.; Dumitricǎ, T.; Jeschke, Harald Olaf.
In: Applied Physics A: Materials Science and Processing, Vol. 79, No. 4-6, 09.2004, p. 855-857.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Laser-induced coherent phonons in graphite and carbon nanotubes
T2 - Model and simulations
AU - Garcia, M. E.
AU - Dumitricǎ, T.
AU - Jeschke, Harald Olaf
PY - 2004/9
Y1 - 2004/9
N2 - We present a microscopic description of the excitation of coherent phonons as a response to femtosecond laser excitation. Using molecular dynamics simulations based on a tight-binding electronic Hamiltonian we discuss two examples of laser-induced coherent phonons: (1) excitation of the E 2g1 phonon mode in graphite under high external pressure and (2) the displacive excitation of two perpendicular phonon modes in carbon nanotubes. We discuss the influence of these coherent phonons on the ablation mechanisms.
AB - We present a microscopic description of the excitation of coherent phonons as a response to femtosecond laser excitation. Using molecular dynamics simulations based on a tight-binding electronic Hamiltonian we discuss two examples of laser-induced coherent phonons: (1) excitation of the E 2g1 phonon mode in graphite under high external pressure and (2) the displacive excitation of two perpendicular phonon modes in carbon nanotubes. We discuss the influence of these coherent phonons on the ablation mechanisms.
UR - http://www.scopus.com/inward/record.url?scp=4344613403&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4344613403&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:4344613403
VL - 79
SP - 855
EP - 857
JO - Applied Physics
JF - Applied Physics
SN - 0340-3793
IS - 4-6
ER -