Raman Dichroic Mirror RT488RDC-R

Raman Dichroic Mirror — Model RT488RDC-R

Raman Dichroic Mirror

Product Description

• Outer diameter 25.0 mm, with mechanical retaining ring
• High environmental resistance, long service life
• FWHM: 3 nm, 4 nm, 5 nm, 6 nm, 7 nm
• Center wavelength: 266 nm-1064 nm
• Optical density in stop band: OD5, OD6

LBTEK offers CHROMA Raman Filters with a diameter of 25 mm and mechanical retaining rings. Raman Filters are bandpass filters with a bandwidth of less than 10 nm, used in instruments such as Raman spectrometers. Raman filters fully transmit only the central wavelength, with optical densities in the stop band reaching as high as OD5 and OD6. LBTEK's CHROMA Raman filters utilize a magnetron sputtering coating process, resulting in high transmittance, a high cutoff depth, and a high steepness. In Raman spectroscopy applications, they effectively reduce stray light interference, improve spectral signal quality, and enhance detection sensitivity and accuracy.

Raman Dichroic Mirror

• Longpass Dichroic Mirror
• Reflection Cutoff & Transmission Start Wavelength: 266 nm-785 nm
• Ø25.0 mm (Mounted), Ø25.0 mm (Unmounted), 36 mm x 25.5 mm
• Incidence Angle: 45°

LBTEK Raman long-pass dichroic mirrors are filters that allow long wavelengths to pass through while reflecting or absorbing short wavelengths. They exhibit high transmittance (Tavg > 90%) for light with wavelengths longer than the cut-on (cut-off) wavelength and high reflectance (Ravg > 90%) for light with wavelengths shorter than the cut-on (cut-off) wavelength. Raman long-pass dichroic mirrors are available in two types: mounted (Ø25.0 mm) and unmounted (Ø25.0 mm & 36 mm x 25.5 mm). For the mounted version, an arrow (↑) engraved on the housing indicates the direction of light propagation, while for the unmounted version, an arrow (>) on the side indicates the direction of the coated surface, facilitating installation and use. Raman long-pass dichroic mirrors are recommended for use at an incident angle of 45°. If the incident angle deviates from the design angle, the cut-on (cut-off) wavelength will shift.