Poxson David J, Mont Frank W, Schubert Martin F, Kim Jong Kyu, Cho Jaehee, Schubert E Fred
Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, USA.
Opt Express. 2010 Nov 8;18 Suppl 4:A594-9. doi: 10.1364/OE.18.00A594.
Optical interference filters utilizing tunable refractive index layers are shown to have higher spectral fidelity as compared to conventional filters consisting of non-tunable refractive index layers. To demonstrate this increase in spectral fidelity, we design and compare a variety of optical interference filters employing both tunable and non-tunable refractive index layers. Additionally, a five-layer optical interference filter utilizing tunable refractive index layers is designed and fabricated for use with a Xenon lamp to replicate the Air Mass 0 solar irradiance spectrum and is shown to have excellent spectral fidelity.
