Optical second harmonic generation from V-shaped chromium nanohole arrays
Optical second harmonic generation from V-shaped chromium nanohole arrays
We observed rotational anisotropy of optical second harmonic generation (SHG) from V-shaped chromium nanohole arrays with 150 nm arm-length, 50 nm width, 360 nm periodicity, 120° apex angle, and an area of 100 µm2, fabricated by electron beam lithography. Phenomenological analysis indicated that the effective nonlinear susceptibility element χ(2)[313] had a characteristic contribution to the observed anisotropic SHG intensity patterns. Here coordinate 1 is in the direction of the tip of V shapes in the substrate plane, and 3 indicates the direction perpendicular to the sample surface. The SHG intensity for the S-polarized output light was very weak, probably due to cancellation effect by the image dipoles created at the metal-air boundary. The possible origin of the observed nonlinearity was discussed according to the susceptibility elements obtained.
T21713
Quang, Ngo Khoa
61bfaded-c0dd-4481-a90f-cd0c16cd810b
Miyauchi, Yoshihiro
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Mizutani, Goro
65900bcb-3c20-4fb1-9048-3db4c4cffc6a
Charlton, Martin D.
fcf86ab0-8f34-411a-b576-4f684e51e274
Chen, Ruiqi
59f6c60e-4144-403b-81eb-c2b3482b9bf6
Boden, Stuart
83976b65-e90f-42d1-9a01-fe9cfc571bf8
Rutt, Harvey
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2014
Quang, Ngo Khoa
61bfaded-c0dd-4481-a90f-cd0c16cd810b
Miyauchi, Yoshihiro
0b233961-6dfe-4319-ba92-6221e4d504a2
Mizutani, Goro
65900bcb-3c20-4fb1-9048-3db4c4cffc6a
Charlton, Martin D.
fcf86ab0-8f34-411a-b576-4f684e51e274
Chen, Ruiqi
59f6c60e-4144-403b-81eb-c2b3482b9bf6
Boden, Stuart
83976b65-e90f-42d1-9a01-fe9cfc571bf8
Rutt, Harvey
e09fa327-0c01-467a-9898-4e7f0cd715fc
Quang, Ngo Khoa, Miyauchi, Yoshihiro, Mizutani, Goro, Charlton, Martin D., Chen, Ruiqi, Boden, Stuart and Rutt, Harvey
(2014)
Optical second harmonic generation from V-shaped chromium nanohole arrays.
[in special issue: JJAP Special Issue]
Japanese Journal of Applied Physics, 53 (2S), .
(doi:10.7567/JJAP.53.02BC11).
Abstract
We observed rotational anisotropy of optical second harmonic generation (SHG) from V-shaped chromium nanohole arrays with 150 nm arm-length, 50 nm width, 360 nm periodicity, 120° apex angle, and an area of 100 µm2, fabricated by electron beam lithography. Phenomenological analysis indicated that the effective nonlinear susceptibility element χ(2)[313] had a characteristic contribution to the observed anisotropic SHG intensity patterns. Here coordinate 1 is in the direction of the tip of V shapes in the substrate plane, and 3 indicates the direction perpendicular to the sample surface. The SHG intensity for the S-polarized output light was very weak, probably due to cancellation effect by the image dipoles created at the metal-air boundary. The possible origin of the observed nonlinearity was discussed according to the susceptibility elements obtained.
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e-pub ahead of print date: 29 January 2014
Published date: 2014
Organisations:
Optoelectronics Research Centre, Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 354723
URI: http://eprints.soton.ac.uk/id/eprint/354723
ISSN: 0021-4922
PURE UUID: 0cd385a1-582c-4b21-9dd4-4a6dcab15ecb
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Date deposited: 18 Jul 2013 10:43
Last modified: 15 Mar 2024 03:21
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Contributors
Author:
Ngo Khoa Quang
Author:
Yoshihiro Miyauchi
Author:
Goro Mizutani
Author:
Martin D. Charlton
Author:
Ruiqi Chen
Author:
Stuart Boden
Author:
Harvey Rutt
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