Abstract
Surface enhanced second harmonic generation (SESHG) has been observed for the first time from a Pt surface in a <10−3 Torr vacuum environment. Both ‘‘smooth,’’ mechanically polished Pt surfaces and rippled Pt microstructures prepared by laser microchemical etching in Cl2(g) were studied with the newly developed technique of SESHG imaging. The etching procedure and the behavior of the Pt surface under the SESHG imaging conditions is reported in detail. The rippled/smooth enhancement factor for SHG excited with 80 ps, 1064 nm pulses from a cw, mode-locked Nd-YAG laser focused to a 3.1 μm 1/e2 radius ranges from 4 to 17, in qualitative agreement with theoretical calculations for isolated Pt spheroids.
Keywords
LaserMaterials scienceRADIUSInfraredEtching (microfabrication)OpticsSecond-harmonic generationExcited stateOptoelectronicsSecond-harmonic imaging microscopyNanotechnologyAtomic physicsPhysics
Affiliated Institutions
Related Publications
A surface-enhanced hyper-Raman and surface-enhanced Raman scattering study of <i>trans</i>-1,2-bis(4-pyridyl)ethylene adsorbed onto silver film over nanosphere electrodes. Vibrational assignments: Experiment and theory
We present theoretical and experimental studies of the infrared (IR) spectroscopy, normal Raman spectroscopy (NRS), surface-enhanced Raman spectroscopy (SERS), and surface-enhan...
Surface-enhanced spectroscopy
In 1978 it was discovered, largely through the work of Fleischmann, Van Duyne, Creighton, and their coworkers that molecules adsorbed on specially prepared silver surfaces produ...
Publication Info
- Year
- 1989
- Type
- article
- Volume
- 90
- Issue
- 2
- Pages
- 1237-1252
- Citations
- 32
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
32
OpenAlex
Cite This
Kurt Haller,
Lloyd A. Bumm,
Robert I. Altkorn
et al.
(1989).
Spatially resolved surface enhanced second harmonic generation: Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface.
The Journal of Chemical Physics
, 90
(2)
, 1237-1252.
https://doi.org/10.1063/1.456129
Identifiers
- DOI
- 10.1063/1.456129