The Interaction of 1064 nm Photons with the Al2O3(1120) Surface / MA. Schildbach, AV. Hamza
- Conference Author
- Laser-Induced Damage in Optical Materials: 1990 (1990 : Boulder, Colorado)
- Physical Description
- 1 online resource (7 pages) : illustrations, figures, tables
- Additional Creators
- Hamza, AV., Schildbach, MA., American Society for Testing and Materials, and ASTM International
Access Online
- Restrictions on Access
- Subscription required for access to full text.
License restrictions may limit access. - Summary
- Low energy electron diffraction (LEED), Auger electron spectroscopy (AES), and electron energy loss spectroscopy (ELS) were used to characterize Al2O3(1120) surfaces before and after exposure to Nd:YAG 1064 nm, 1.17 eV photons. The clean and well-annealed (Ts>1500K) surface exhibited a (12¿̐ư4) LEED pattern. Irradiation of the surface with laser fluences of approximately 3.5 J/cm2,30% of the visible damage threshold, degraded the surface to the point that the (12¿̐ư4) diffraction beams were no longer detectable. Characterization of the laser-irradiated surface by AES failed to show any departure from the (12¿̐ư4) surface, unlike electron beam damage of alumina where the desorption of oxygen leaves metallic aluminum. However, subsequent annealing to 1700 K was sufficient to restore the original pattern. ELS of the (12¿̐ư4) surface showed the presence of surface electronic states in the bulk band gap with energy losses between 3 and 5 eV.
- Dates of Publication and/or Sequential Designation
- Volume 1991, Issue 1141 (January 1991)
- Subject(s)
- ISBN
- 9780803151796 (e-ISBN)
9780819405326
0819405329 - Digital File Characteristics
- text file PDF
- Bibliography Note
- Includes bibliographical references 12.
- Other Forms
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition. - Reproduction Note
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1991. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details
- Mode of access: World Wide Web.
- Source of Acquisition
- ASTM International PDF Purchase price USD25.
View MARC record | catkey: 27989090