Articles with "harmonic optical" as a keyword



Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles

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Published in 2022 at "ACS Photonics"

DOI: 10.1021/acsphotonics.1c00882

Abstract: While plasmonic particles can provide optical resonances in a wide spectral range from the lower visible up to the near-infrared, often, symmetry effects are utilized to obtain particular optical responses. By breaking certain spatial symmetries,… read more here.

Keywords: iii nanoparticles; helicoid iii; second harmonic; harmonic optical ... See more keywords
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Generation of an ultra-long sub-diffracted second-harmonic optical needle from a periodically poled LiNbO3 crystal

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Published in 2020 at "Applied Physics Letters"

DOI: 10.1063/1.5142522

Abstract: We experimentally demonstrate the use of a periodically poled LiNbO3 (PPLN) crystal to produce an ultra-long sub-diffraction optical needle via second-harmonic generation. When we input a radially polarized fundamental wave from a femtosecond laser, a… read more here.

Keywords: periodically poled; optical needle; ultra long; harmonic optical ... See more keywords

Third-harmonic optical process in Zn:NiO thin films under the influence of femtosecond and continuous wave laser excitation

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Published in 2024 at "Materials Research Express"

DOI: 10.1088/2053-1591/ad48df

Abstract: In this study, we focused on the impact of nonlinear optical properties on Zn-doped NiO thin film, which was analyzed using z scan and THG technique. The z-scan technique was performed using a continuous wave… read more here.

Keywords: nio thin; third harmonic; continuous wave; absorption ... See more keywords