Ultra-broadband absorbance of nanometer-thin pyrolyzed-carbon film on silicon nitride membrane
Justinas Jorudas,
Hamza Rehman,
Maria Cojocari
et al.
Abstract:Fifty percents absorption by thin film, with thickness is much smaller than the skin depth and optical thickness much smaller than the wavelength, is a well-known concept of classical electrodynamics. This is a valuable feature that has been numerously widely explored for metal films, while chemically inert nanomembranes are a real fabrication challenge. Here we report the 20 nm-thin pyrolyzed carbon film (PyC) placed on 300 nm-thick silicon nitride (Si3N4) membrane demonstrating an efficient broadband absorpt… Show more
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