Spatially resolved surface enhanced second harmonic generation: Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface

Kurt L. Haller; Lloyd A. Bumm; Robert I. Aitkorn; Ellen J. Zeman; George C. Schatz; Richard P. Van Duyne

doi:10.1063/1.456129

Spatially resolved surface enhanced second harmonic generation: Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface

Kurt L. Haller, Lloyd A. Bumm, Robert I. Aitkorn, Ellen J. Zeman, George C. Schatz, Richard P. Van Duyne^*

^*Corresponding author for this work

Chemistry

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31 Scopus citations

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 Cl ₂(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 μ 1/e² radius ranges from 4 to 17, in qualitative agreement with theoretical calculations for isolated Pt spheroids.

Original language	English (US)
Pages (from-to)	1237-1252
Number of pages	16
Journal	The Journal of Chemical Physics
Volume	90
Issue number	2
DOIs	https://doi.org/10.1063/1.456129
State	Published - 1989

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1063/1.456129

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Haller, K. L., Bumm, L. A., Aitkorn, R. I., Zeman, E. J., Schatz, G. C., & Van Duyne, R. P. (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

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title = "Spatially resolved surface enhanced second harmonic generation: Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface",

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 Cl 2(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 μ 1/e2 radius ranges from 4 to 17, in qualitative agreement with theoretical calculations for isolated Pt spheroids.",

author = "Haller, {Kurt L.} and Bumm, {Lloyd A.} and Aitkorn, {Robert I.} and Zeman, {Ellen J.} and Schatz, {George C.} and {Van Duyne}, {Richard P.}",

year = "1989",

doi = "10.1063/1.456129",

language = "English (US)",

volume = "90",

pages = "1237--1252",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics Publising LLC",

number = "2",

}

Haller, KL, Bumm, LA, Aitkorn, RI, Zeman, EJ, Schatz, GC & Van Duyne, RP 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, vol. 90, no. 2, pp. 1237-1252. https://doi.org/10.1063/1.456129

Spatially resolved surface enhanced second harmonic generation : Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface. / Haller, Kurt L.; Bumm, Lloyd A.; Aitkorn, Robert I. et al.

In: The Journal of Chemical Physics, Vol. 90, No. 2, 1989, p. 1237-1252.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Spatially resolved surface enhanced second harmonic generation

T2 - Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface

AU - Haller, Kurt L.

AU - Bumm, Lloyd A.

AU - Aitkorn, Robert I.

AU - Zeman, Ellen J.

AU - Schatz, George C.

AU - Van Duyne, Richard P.

PY - 1989

Y1 - 1989

N2 - 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 Cl 2(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 μ 1/e2 radius ranges from 4 to 17, in qualitative agreement with theoretical calculations for isolated Pt spheroids.

AB - 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 Cl 2(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 μ 1/e2 radius ranges from 4 to 17, in qualitative agreement with theoretical calculations for isolated Pt spheroids.

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Spatially resolved surface enhanced second harmonic generation: Theoretical and experimental evidence for electromagnetic enhancement in the near infrared on a laser microfabricated Pt surface

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