Optical absorption measurements have been performed on samples of crystalline and amorphous SiO2 at several temperatures between 4 and 300 K. The data have been analysed using Urbach's rule for the absorption coefficient against photon energy. Results of this analysis for crystalline and amorphous SiO2 are compared and discussed.
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
To request a reprint or corporate permissions for this article, please click on the relevant link below:
Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?
Obtain permissions instantly via Rightslink by clicking on the button below:
If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.
