An ultraviolet absorption, as well as Stokes and anti-Stokes Raman resonanc
e scattering of spectroscopically pure SiO2 was investigated by flash photo
lysis technique. The whole spectrum of 'absorption and scattered bands' was
recorded photographically in ultraviolet. A resonance absorption line was
observed at 288.2 nm, without structure, while scattered lines were observe
d at 285-288.2 and 288.2-290 nm. (C) 2000 Elsevier Science B.V. All rights
reserved.