Material can be added from the predefined list:


Also the complex number can be typed in here.

The option AlloyAuAg correspond to analytical parametrixation for silver-gold alloys [Rioux2014] and requires the specification of Au ratio (\(0 \le x \le 1\)).

Next button will add material from file with refractive index data stored in column format, i.e.:

lambda      n       k
 0.100      2.8883  1.3062
 0.101      2.8735  1.2439
 0.101      2.8564  1.1856

First column – wavelength in nm or mum, second and third – real and imaginary parts of refractive index.

The refractive index data can be plotted to check sanity:


Cross button deletes the selected material.