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Optical constants of Ag (Silver)
Ciesielski et al. 2017: Ag/Ge/SiO2; n,k 0.191–20.9 µm

Wavelength: µm
 (0.19077–20.912)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Conditions & Spec sheet

n_is_absolute: true
wavelength_is_vacuum: true
film_thickness: 20e-9
substrate: Ge/SiO2

Comments

20 nm-thick silver film deposited on SiO2 substrate with 2 nm-thick Ge wetting interlayer

References

A. Ciesielski, L. Skowronski, M. Trzinski, T. Szoplik. Controlling the optical parameters of self-assembled silver films with wetting layers and annealing, Appl. Surf. Sci. 421B, 349-356 (2017) (Numerical data kindly provided by Arkadiusz Ciesielski)

Data

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INFO

Silver, Ag

Silver (Ag) is a highly reflective metal known for its excellent electrical and thermal conductivity, making it a material of interest in a variety of optical and electronic applications. In the realm of optics, silver is frequently used as a coating material for mirrors due to its high reflectivity across a broad range of wavelengths, from ultraviolet to infrared. Additionally, silver nanoparticles are employed in plasmonic devices, enhancing light-matter interactions at the nanoscale. While the metal is highly stable under most conditions, it is susceptible to tarnishing in the presence of sulfur compounds, which can diminish its optical performance over time. Silver's unique combination of properties, including its unparalleled reflectivity and high electrical conductivity, makes it a versatile material in the field of optics and photonics. Note that its refractive index can vary depending on the form in which it is used, such as bulk silver, thin films, or nanoparticles, making it crucial to consult specific data for particular applications.

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