Such a laser provides users with many wavelengths to choose from, and an acousto-optic tunable filter lets the researchers pick the wavelengths they need. According to Jolanta Soos, sales and ...

More information: Yuanjie Xia et al, Thermal-controlled cholesteric liquid crystal wavelength filter lens for photosensitive epilepsy treatment, Cell Reports Physical Science (2024). DOI ...

Near and mid-infrared light filters were used. RELATED STORY | NASA clears up confusion regarding strange sound from Starliner In the multi-wavelength image released this week by NASA, images of ...

Each colour within the visible light spectrum has its own narrow band of wavelength and frequency. When white light passes through a coloured filter, all colours are absorbed except for the colour ...