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Study of second and third harmonic generation from an indium tin oxide nanolayer: Influence of nonlocal effects and hot electrons

Author
Rodriguez, L.; Scalora, Michael; Johnson, A. S.; Cojocaru, C.; Akozbek, N.; Coppens, Z. J.; Pérez, D.; Wall, S.; Trull, J.
Type of activity
Journal article
Journal
APL Photonics
Date of publication
2020-01-03
Volume
5
Number
1
First page
010801-1
Last page
010801-9
DOI
10.1063/1.5129627
Repository
http://hdl.handle.net/2117/175463 Open in new window
URL
https://aip.scitation.org/doi/10.1063/1.5129627 Open in new window
Abstract
We report comparative experimental and theoretical studies of the second and third harmonic generation from a 20 nm-thick indium tin oxide layer in proximity of the epsilon-near-zero condition. Using a tunable optical parametric amplifier, we record both spectral and angular dependence of the generated harmonic signals close to this particular point. In addition to the enhancement of the second harmonic efficiency close to the epsilon-near-zero wavelength, at oblique incidence, third harmonic ge...
Citation
Rodriguez, L. [et al.]. Study of second and third harmonic generation from an indium tin oxide nanolayer: Influence of nonlocal effects and hot electrons. "APL Photonics", 3 Gener 2020, vol. 5, núm. 1, p. 010801-1-010801-9.
Keywords
Dielectric properties, Electron gas, Electronic transport, Maxwell equations, Nonlinear optical properties, Third-harmonic generation
Group of research
DONLL - Nonlinear dynamics, nonlinear optics and lasers

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