Data for Slow Light Nanocoatings for Ultrashort Pulse Compression

<b>Data for </b><b>Slow light nanocoatings for ultrashort pulse compression</b><br>M. Ossiander1,* Y.-W. Huang1,2, W. T. Chen1, Z. Wang3, X. Yin1, Y. A. Ibrahim1,4, M. Schultze3,
F. Capasso1*1 John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford St, Cambridge, MA 02138, USA. <br>2 Department of Photonics,
National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.<br>3 Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010
Graz, Austria.<br>4 University of Waterloo, Waterloo, ON N2L 3G1, Canada.<br>* Corresponding Authors: [e-mail], [e-mail]<br>Manuscript published in <b>Nature Communications 12, 6518 (2021),</b> https://www.nature.com/articles/s41467-021-26920-6Details of the data files are described below and in the description.txt files. Methods are described in the publication.-- <br><b>Folder frog_data: </b><br>This folder contains the frequency resolved optical gating data for the 162 nm nanopillar diameter coating.<br>Reference data for the incoming femtosecond laser pulses and the incoming laser pulses transmitted through the uncoated substrate only are also provided.The variables in the files are:<br>wavelength_nm: wavelength axis for frequency resolved optical gating spectrogram in nanometers.<br>delay_fs: delay axis for the frequency resolved optical gating spectrogram in femtoseconds.<br>spectrogram: the raw frequency resolved optical gating spectrogram in arbitrary units.<b>Folder white_light_data: </b><br>This folder contains the raw white light interferometer data.<br>Folders are named according to the nanopillar diameter of the examined compressor coating.<br>For each coating, reference data of the empty interferometer, and reference data of the substrate in one interferometer arm (double pass) is also provided.The variables in the files are:<br>wavelength: wavelength axis for the recorded spectral intensities in nanometers.<br>background: Spectral intensity after the interferometer with both interferometer arms blocked in arbitrary units.<br>A: Spectral intensity after the interferometer with sample arm blocked in arbitrary units.<br>B: Spectral intensity after the interferometer with reference arm blocked in arbitrary units.<br>AB: Spectral intensity after the interferometer in arbitrary units.<br>wavelengthGD: wavelength axis for the calculated group delay in nanometers.<br>frequencyGD: frequency axis for the calculated group delay in petahertz.<br>GDnm: calculated group delay in femtoseconds (plot versus wavelengthGD).<br>GDPHz: calculated group delay in femtoseconds (plot versus frequencyGD).