Abstract
Using in situ Raman scattering in a confocal microscopy setup, we have observed changes in the network structure of fused silica after modifying regions inside the glass with tightly focused 800-nm 130-fs laser pulses at fluences of 5-200 J cm-2. The Raman spectra show a large increase in the peaks at 490 and 605 cm-1, owing to 4- and 3-membered ring structures in the silica network, indicating that densification occurs after exposure to the femtosecond laser pulses. The results are consistent with the formation of a localized plasma by the laser pulse and a subsequent microexplosion inside the glass.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1726-1728 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 26 |
| Issue number | 21 |
| State | Published - Nov 1 2001 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Structural changes in fused silica after exposure to focused femtosecond laser pulses. / Chan, James W; Huser, Thomas R; Risbud, S.; Krol, D. M.
In: Optics Letters, Vol. 26, No. 21, 01.11.2001, p. 1726-1728.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structural changes in fused silica after exposure to focused femtosecond laser pulses
AU - Chan, James W
AU - Huser, Thomas R
AU - Risbud, S.
AU - Krol, D. M.
PY - 2001/11/1
Y1 - 2001/11/1
N2 - Using in situ Raman scattering in a confocal microscopy setup, we have observed changes in the network structure of fused silica after modifying regions inside the glass with tightly focused 800-nm 130-fs laser pulses at fluences of 5-200 J cm-2. The Raman spectra show a large increase in the peaks at 490 and 605 cm-1, owing to 4- and 3-membered ring structures in the silica network, indicating that densification occurs after exposure to the femtosecond laser pulses. The results are consistent with the formation of a localized plasma by the laser pulse and a subsequent microexplosion inside the glass.
AB - Using in situ Raman scattering in a confocal microscopy setup, we have observed changes in the network structure of fused silica after modifying regions inside the glass with tightly focused 800-nm 130-fs laser pulses at fluences of 5-200 J cm-2. The Raman spectra show a large increase in the peaks at 490 and 605 cm-1, owing to 4- and 3-membered ring structures in the silica network, indicating that densification occurs after exposure to the femtosecond laser pulses. The results are consistent with the formation of a localized plasma by the laser pulse and a subsequent microexplosion inside the glass.
UR - http://www.scopus.com/inward/record.url?scp=0002367895&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0002367895&partnerID=8YFLogxK
M3 - Article
VL - 26
SP - 1726
EP - 1728
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 21
ER -