Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 3392-3400 |
| Journal | Optical Materials Express |
| Volume | 8 |
| Issue number | 11 |
| Early online date | 17 Oct 2018 |
| DOIs | |
| Publication status | Published - 1 Nov 2018 |
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Keywords
- integrated optics
- plasmonics
- nanophotonics
- nonlinear optics
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Degenerate optical nonlinear enhancement in epsilon-near-zero transparent conducting oxides. / Carnemolla, Enrico Giuseppe; Caspani, Lucia; DeVault, Clayton; Clerici, Matteo; Vezzoli, Stefano; Bruno, Vincenzo; Shalaev, Vladimir M.; Faccio, Daniele Franco Angelo; Boltasseva, Alexandra; Ferrera, Marcello.
In: Optical Materials Express, Vol. 8, No. 11, 01.11.2018, p. 3392-3400.Research output: Contribution to journal › Article
TY - JOUR
T1 - Degenerate optical nonlinear enhancement in epsilon-near-zero transparent conducting oxides
AU - Carnemolla, Enrico Giuseppe
AU - Caspani, Lucia
AU - DeVault, Clayton
AU - Clerici, Matteo
AU - Vezzoli, Stefano
AU - Bruno, Vincenzo
AU - Shalaev, Vladimir M.
AU - Faccio, Daniele Franco Angelo
AU - Boltasseva, Alexandra
AU - Ferrera, Marcello
PY - 2018/11/1
Y1 - 2018/11/1
N2 - We report the simultaneous increase of both nonlinear Kerr coefficient n2 and third-order nonlinear susceptibility χ^((3)) in aluminum zinc oxide (AZO) attained by pump-probe spectroscopy in a frequency degenerate configuration. Our experiments demonstrate a 6-fold enhancement in the third-order nonlinear susceptibility and over one order of magnitude increase in the nonlinear Kerr coefficient, while also determining two distinct operational wavelengths for optimal modulation of either the real or the imaginary part of the complex refractive index. These results, besides providing a broader spectral characterization of the third-order nonlinearity in AZO thin films, also show the fundamental advantages of performing nonlinear optics via degenerate excitation near the ENZ wavelength
AB - We report the simultaneous increase of both nonlinear Kerr coefficient n2 and third-order nonlinear susceptibility χ^((3)) in aluminum zinc oxide (AZO) attained by pump-probe spectroscopy in a frequency degenerate configuration. Our experiments demonstrate a 6-fold enhancement in the third-order nonlinear susceptibility and over one order of magnitude increase in the nonlinear Kerr coefficient, while also determining two distinct operational wavelengths for optimal modulation of either the real or the imaginary part of the complex refractive index. These results, besides providing a broader spectral characterization of the third-order nonlinearity in AZO thin films, also show the fundamental advantages of performing nonlinear optics via degenerate excitation near the ENZ wavelength
KW - integrated optics
KW - plasmonics
KW - nanophotonics
KW - nonlinear optics
U2 - 10.1364/OME.8.003392
DO - 10.1364/OME.8.003392
M3 - Article
VL - 8
SP - 3392
EP - 3400
JO - Optical Materials Express
JF - Optical Materials Express
SN - 2159-3930
IS - 11
ER -