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Design of low-haze holographic notch filters
1Department of Physics and Mathematical Physics, University of Adelaide, Adelaide , SA 5005, Australia.
Applied Optics
|March 8, 2008
Abstract:
We have studied the optical quality of holographic notch filters and have identified that stray illumination during the exposure stage and substrate scatter are the limiting factors. We propose and analyze a novel holographic recording scheme in which the substrate is rotated during exposure. Using this method, we have produced high-uniformity, flare-free dichromated gelatin notch filters with optical density greater than 5 and with scatter comparable with that from polished substrates.
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