ISSN:
1432-0649
Keywords:
42.65
;
68.20
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Polarization and azimuthal dependencies of optical second-harmonic generation at the surface of cubic ionic crystals have been measured on polished surfaces of BaF2 (111) and (100), CaF2 (111) and NaCl (111), using a fundamental wavelength of 532 nm. The results are interpreted in terms of available theory, which shows that for transparent cubic media only the dipolar surface contribution depends on the crystal orientation. For BaF2 (111) and NaCl (111) the crystallineC 3vgeometry could be identified but not for CaF2 (111). Although the nature of the electronic surface structure giving rise to a dipolar polarizability remains undetermined, the experimental result suggests that it may be due to impurity or defect states in the band gap at the surface.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00686465
Permalink
