Photoinduced luminescence from the noble metals and its enhancement on roughened surfaces

Journal Article · Sun Jun 15 04:00:00 EDT 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.7923· OSTI ID:5820760

Boyd, G T; Yu, Z H; Shen, Y R

Single-photon- and multiphoton-induced luminescence spectra were obtained from clean samples of silver, copper, and gold with both smooth and rough surfaces. The spectra reveal new features which are correlated with interband transitions at selected symmetry points in the Brillouin zone. Calculating luminescence spectra based on simplified models of the band structures of the noble metals and taking into account the Fresnel local-field corrections, we find qualitative agreement with the observed spectra from smooth samples. The agreement between theory and experiment is less satisfactory for rough samples. The influence of surface roughness on the luminescence is largely attributable to local-field enhancement in the rough surface protrusions.

• Research Organization: Department of Physics, University of California, Berkeley, California 94720 and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5820760
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:12; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
AUGMENTATION
COPPER
ELECTROMAGNETIC FIELDS
ELECTRONIC STRUCTURE
ELEMENTS
GOLD
LUMINESCENCE
METALS
PHOTOLUMINESCENCE
ROUGHNESS
SILVER
SURFACE PROPERTIES
TRANSITION ELEMENTS