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Specular Reflection Accessories 

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Basics™ 30° Specular Reflectance Accessory

ICL’s Basics™ 30° specular reflectance accessory is useful for non-destructive analysis of anything that will not transmit infrared energy. Typical applications are analysis of films and coatings and measurement of the thickness of free standing films with known refractive indices by fringe pattern analysis. The accessory is mounted on the standard universal 2” x 3” slide mount of any FTIR instrument. The mirrors of the accessory direct the infrared beam at the sample at an angle of incidence of 30 degrees. Mirrors are first surface coated with aluminum. The sample is placed face down on the sample stage at the top of the accessory for analysis. A set of three masks with small apertures is provided for use with small samples. A ...

80° Specular Reflectance Grazing Angle Accessory

The 80° Specular Reflectance Grazing Angle Accessory is designed for use in FTIR spectrophotometers for the measurement of monolayer films on metallic substrates and for characterization of samples that cannot be analyzed by other techniques because they do not transmit IR radiation.
The IR beam of the spectrophotometer is reflected at the input mirror to strike the sample at an incident angle of 80°, which is as close as can be achieved with a modestly priced accessory to the optimal grazing angle slightly less than 90°. Sensitivity can be enhanced significantly by combining this accessory with a wire grid polarizer using the built-in slide mounts.
The accessory is prealigned and ready to use. The sample is placed ...