Auteur(s): Guillon C., Burgin J., Langot P., Vallée F., Hehlen B.
(Article) Publié: Applied Physics Letters, vol. 86 p.081909 (2005)
Ref HAL: hal-00338965_v1
DOI: 10.1063/1.1867566
WoS: 000227609000023
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Résumé:
The D1 and D2 defect modes are investigated in the time domain in normal and densified silica using a high sensitivity femtosecond pump-probe technique with 15 fs pulses. Their frequency and width are precisely determined even when they are partly masked by a broad background in spontaneous Raman spectroscopy. These results open up many possibility for investigation of local structures in glasses.