Thorlabs offers a complete selection of blackout materials that are designed to control stray or ambient light, which can adversely affect experiments or components within a setup (e.g. photodetectors). These materials are especially beneficial when using high-gain detection equipment, such as
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Spectroelectrochemical and Chemical Evidence of Surface Passivation at Zinc Ferrite (ZnFe2O4) Photoanodes for Solar Water Oxidation - Liu - 2021 - Advanced Functional Materials - Wiley Online Library
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Performance of portable TDCR systems developed at LNE-LNHB - ScienceDirect
Optics: What is a good, non-perishable, non-toxic, dissolvable scattering agent to make lasers and other light sources visible in water? - Quora
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Laser Safety Curtains
Performance of portable TDCR systems developed at LNE-LNHB - ScienceDirect
How to reflect a laser or divert it - Quora
Laser Safety Products - Lasermet