GLS496 Visible Light Absorbing Dye – 496nm Peak for Notch Filters and Covert Security Applications

Notch Filters for Optical Systems

GLS496 is ideal for precision notch filters that require rejection of 496nm light while maintaining high transmission at adjacent wavelengths. These filters are used in fluorescence microscopy to block specific excitation lines, in Raman spectroscopy to reject Rayleigh scattering, and in multispectral imaging systems where precise wavelength control is critical.

Anti-Counterfeiting Inks

When formulated into security inks, GLS496 creates covert features that are invisible under white light but become detectable under specific narrowband illumination at or near 496nm. This machine-readable authentication method provides a powerful deterrent against document forgery, product counterfeiting, and brand infringement. Applications include banknotes, passports, tax stamps, pharmaceutical packaging, and luxury goods.

Laser Protection Eyewear

GLS496 can be incorporated into laser safety glasses and goggles to block 496nm laser sources. The dye provides effective protection while maintaining good visibility of other wavelengths, making it suitable for laboratory, industrial, and medical laser environments.

Display Materials and Optical Coatings

The dye can be incorporated into transparent thermoplastic resins, plastic masterbatches, and optical coatings for display applications requiring specific wavelength attenuation. It is also suitable for textile dyeing and printing where precise color filtration is required.

Photosensitive Sensitizing Systems

GLS496 acts as a photosensitive sensitizing dye in certain photopolymerization and imaging systems, enabling light-activated reactions at 496nm.