Non-resonant enhancement of second-harmonic generation from metal nanoislands coated with dielectric layers

Koskinen, Kalle; Scherbak, Sergey; Chervinskii, Semyon; Lipovskii, Andrey; Kauranen, Martti (2018)
 
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Koskinen, Kalle
Scherbak, Sergey
Chervinskii, Semyon
Lipovskii, Andrey
Kauranen, Martti
2018

JTu2A.134
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doi:10.1364/CLEO_AT.2018.JTu2A.134
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https://urn.fi/URN:NBN:fi:tty-201806041911

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Tiivistelmä
Second-harmonic generation from gold nanoisland films increases with the dielectric TiO2 coating thickness. This occurs although the plasmon resonance shifts away from the second-harmonic wavelength, due to enhanced non-resonant local fields at the fundamental wavelength.
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