All semiconductor enhanced high- harmonic generation from a single nanostructured cone

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Franz, D. et al.: All semiconductor enhanced high-harmonic generation from a single nanostructured cone. In: Scientific Reports (2019), Nr. 9, 5663. DOI:

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Sum total of downloads: 81

The enhancement and control of non-linear phenomena at a nanometer scale has a wide range of applications in science and in industry. Among these phenomena, high-harmonic generation in solids is a recent focus of research to realize next generation petahertz optoelectronic devices or compact all solid state EUV sources. Here, we report on the realization of the first nanoscale high harmonic source. The strong field regime is reached by confining the electric field from a few nanojoules femtosecond laser in a single 3D semiconductor waveguide. We reveal a strong competition between enhancement of coherent harmonics and incoherent fluorescence favored by excitonic processes. However, far from the band edge, clear enhancement of the harmonic emission is reported with a robust sustainability offering a compact nanosource for applications. We illustrate the potential of our harmonic nano-device by performing a coherent diffractive imaging experiment. Ultra-compact UV/X-ray nanoprobes are foreseen to have other applications such as petahertz electronics, nano-tomography or nano-medicine.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2019
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 57 70.37%
2 image of flag of United States United States 6 7.41%
3 image of flag of Philippines Philippines 3 3.70%
4 image of flag of China China 3 3.70%
5 image of flag of Russian Federation Russian Federation 2 2.47%
6 image of flag of Canada Canada 2 2.47%
7 image of flag of Singapore Singapore 1 1.23%
8 image of flag of Sweden Sweden 1 1.23%
9 image of flag of Saudi Arabia Saudi Arabia 1 1.23%
10 image of flag of Korea, Republic of Korea, Republic of 1 1.23%
    other countries 4 4.94%

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