Research data: Grating-graphene metamaterial as a platform for terahertz nonlinear photonics

Research data for used for the publication: "Grating-graphene metamaterial as a platform for terahertz nonlinear photonics".

Datasets measured at the TELBE accelerator-based THz source are measured using a pulse-resolved detection scheme. The data points are sorted according to the absolute arrival time measurement. The four columns hold the following data:<br>
1) absolute time in picoseconds<br>
2) Signal of the emitted THz measured by electro-optic sampling.<br>
3) Relative THz intensity measured using a pyroelectric detector. THz intensity is proportional to absolute power of the signal.<br>
4) Data corresponding to the relative timing of each pulse. Not used for further analysis of the data.

The filenumbers of the measurements used for the figures are as follows:<br>
Fig. 1a: File 003<br>
Fig. 1b-c: File 043<br>
Fig. 1d-e: File 086<br>
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Fig. 2a: Files 080..088 (bare graphene) and 031..049 (grating)<br>
Fig. 2b: same<br>
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Fig. 3a: Files 050..057<br>
Fig. 3c: Files 076..079<br>
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Fig. 4. Table top measurements; no file numbers<br>
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Supp. Fig. 2: File 030<br>
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Supp. Fig. 4: File 024..025<br>
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Supp. Fig. 7a: Files 031..034 and 036..041<br>
Supp. Fig. 7b: Files 080..083<br>
Supp. Fig. 7d: Files 031..049 and 080..086<br>
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Supp. Fig. 9a: Files 031..046<br>
Supp. Fig. 9b: Files 080..085 and 087..088

The datasets measured using a table-top laser source contain two columns. The first one is the position of the optical delay stage in mm that has to be multiplied by 6.667 ps/mm to define the time axis. The second column contains the THz signal as measured using electro-optic sampling.