Azimuthally resolved optical second-harmonic generation from hydrogen on nickel (111)
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We report the first azimuthally resolved measurements of the effect of an adsorbed gas on optical second-harmonic generation (SHG) from a clean, well-ordered metal surface. The second-harmonic intensity from Ni(111) decreases rapidly upon hydrogen adsorption; however, the threefold symmetry with sample rotation about the surface normal is retained. The ..beta../sub 1/ and ..beta../sub 2/ adsorption states are clearly resolved and their contributions to the second-order susceptibility are determined. For this system, SHG is highly sensitive to local site symmetry and little affected by long-range ordering of adsorbates.
- Research Organization:
- Sandia National Laboratories, P.O. Box 969, Livermore, California 94550
- OSTI ID:
- 6774724
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Vol. 38:12
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:6774724