JASCO｜Grazing Angle Reflectance for FTIR

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JASCO｜Grazing Angle Reflectance for FTIR

Reflection Absorption Spectroscopy has the benefit of greater sensitivity – up to 1 or 2 orders of magnitude compared with transmission. When parallel polarized light is incident to a metal surface, the electric vectors in the incident and reflected light interfere to mutually strengthen and form a vertical standing wave. The interaction of this stationary wave with a thin film on the metal surface, causes an absorption that is stronger than simple transmission measurement.

Model : RAS PRO410-H、PR-510i、RAS PRO410-B、RAS-300/Hi

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Specifications

Model	RAS PRO410-H	PR-510i	RAS PRO410-B	RAS-300/Hi
Model	85° Incident Angle without Mirror	Variable Incident Angle	80° Incident Angle	75° Incident Angle
Optical System	Refractive optics
Angle of Incidence	85°	55 - 85°	80°	75°
Polarizer/Analyzer	Wire-grid polarizer (KRS-5)	Wire-grid polarizer (KRS-5)	PL-82 is required	Polarizing mirror (parallel polarization only)
Polarizing Direction	Fixed at 0° to the plane of incidence
Sample Placement	Horizontal	Vertical	Horizontal	Horizontal
Sample Mask	20 x 10 mm, 10 x 10 mm (Option: 10 x 5 mm)	30 x 40 mm	20 x 10 mm, 10 x 10 mm	20 x 10 mm, 10 x 10 mm
IQ Accessory	Available	Available	Available	Available
Smart Purge	Available	-	Available	-