are useful for enhancing sensitivity in grazing angle measurements using
specular reflectance accessories and for molecular orientation studies.
Polarizers attenuate radiation from polarized lasers, polarize radiation
from unpolarized lasers and can be used in
pairs to both polarize and attenuate. ICL wire grid polarizers are
available for wavelength ranges from 3µm
These wire grid polarizers are created by etching sub-micron spaced
grooves (2400 grooves per mm) using holographic methods. Each polarizer
is mounted in a protective 5mm thick anodized aluminum ring that protects
both faces of the polarizer. The outside diameter (OD) of the 25mm polarizer
is 25mm with a clear aperture of 18mm. The OD of the 50mm polarizer is
50mm with a clear aperture of 34mm.
25mm wire grid IR Polarizers are available with 360° rotation stage
holders that are mounted on 2" x 3" backplates.
These rotating mounts render the polarizer suitable for use in any FTIR
or IR spectrophotometer simply by sliding the mount containing the
polarizer into the instrument's standard 2" x 3" slide mount
fixture. The polarizer, which is itself permanently mounted in a black
anodized aluminum ring, is easily inserted into and removed from the
rotating holder without touching the face of the polarizer. When ordered
with a mount, polarizers can be installed in the mount prior to shipping
on customer's request.