MVBP266-40 Bandpass Filter(CWL=266nm,FWHM=40nm)

This is a specialized optical window designed to act like a bouncer at a club. It is built to only let through a very specific, invisible type of deep ultraviolet (UV) light—centered at 266 nanometers—while heavily blocking almost all other light, from other UV rays all the way to near-infrared.

Specification

• Center Wavelength: 266 nm (Deep UV/UVC)
• Bandwidth: 40 nm (allows light roughly between 246nm to 286nm)
• Peak Transmission: 33% (lets through about a third of the target UV light)
• Blocking: OD2 @ 200-1100 nm (blocks 99% of unwanted light across a very broad spectrum to keep the signal clean)

Application - UV Raman Spectroscopy

This is a laboratory technique used to figure out the chemical makeup of a material by shining light on it and reading how that light scatters. Using deep UV light around 266nm is highly valuable because it prevents the sample from "glowing" (fluorescence), which would otherwise hide the faint chemical signals scientists are trying to read.

Recommended light source): 4th Harmonic Nd:YAG Laser

• Perfect Wavelength Match: These lasers naturally produce light at exactly 266nm, which is exactly what this filter is designed to work with).
• High Intensity: Lasers provide the focused, powerful beam required to get a clear, readable scatter from the material being tested.