Updated figure for quick overview over the 13.5nm optical constants. Current optical constants published in the following journal papers:

• Saadeh, Qais et al. Optics Express 29.25 (2021): 40993-41013.
• Andrle, Anna et al. Journal of Applied Crystallography 54.2 (2021): 402-408.
• Saadeh, Qais et al Applied Optics 61.33 (2022): 10032-10042.
• Ciesielski, Richard et al. Applied Optics 61.8 (2022): 2060-2078.
• Saadeh, Qais et al. Optical Materials Express 13.1 (2023): 78-91.
• Saadeh, Qais et al. Optik 273 (2023): 170455.
   

Optical constants for TaCo
Reconstructed from reflection measurements in the wavelength range 8 - 22 nm

Tunability of the optical constants of tantalum-cobalt alloy thin films in the extreme ultraviolet  Optical Materials Express Vol. 13, Issue 1, pp. 78-91 (2023)

Qais Saadeh, Vicky Philipsen, Devesh Thakare, Philipp Naujok, Meiyi Wu, Frank Scholze, Christian Buchholz, Claudia Tagbo-Fotso, Ayhan Babalik, Bettina Kupper, and Victor Soltwisch

https://doi.org/10.1364/OME.474887

Co n&k from 8 nm - 25 nm

On the optical constants of cobalt in the M-absorption edge region

Qais Saadeh et al. 2023

https://doi.org/10.1016/j.ijleo.2022.170455

Added Quartz n&k data 45 eV to 620 eV.

A. Andrle et al. J. Appl. Cryst. (2021). 54, 402-408 https://doi.org/10.1107/S1600576720016325
Quartz Data https://zenodo.org/record/4118056

launch of the website ocdb.ptb.de

Mo, Ni, Pt, Ru, Ta, Te,  Ni₂ Al₃, Ni₃ Al, NiAl, Pt₂Mo, PtMo, PtTe, RuTa, Ru₃Ta, Ru₃Re, Ru₃W, TaBN, TaTeN

Publication https://doi.org/10.5281/zenodo.5607168
Full data set: doi.org/10.5281/zenodo.5602719