This Varian Cary-5000 Research-Grade UV-VIS- NIR Spectrophotometer has equipped with an option of DRA-1800 150-mm O InGaAs Integrating Sphere(190 nm ~1,800 nm) for high accuracy transmittance & reflectance measurements of Optics/thin film/lens/AR-filter testing. [ InGaAs VS.

PbS Integrating Sphere Comparisons]

• Enhanced Sensitivity: The signal to noise (S/N) above 860nm in the NIR is significantly different that the InGaAs translates to greater sensitivity allowing the analysis of smaller samples.
• Greater sensitivity can be traded for analysis speed.
• The Cary VASRA provides the ability to automatically measure the specular reflectance of a sample surface at angles of incidence ranging from 20 to 70 degrees. The VASRA is ideal for measuring the reflectance of materials at various angles and wavelengths(190 nm ~3,100 nm), characterizing mirrors and determining the refractive index and thickness of thin films. The... more

High Absorbance Measurement for Dark Sample Analysis: The InGaAs sphere allows the superior linearity and that is not possible on the PbS sphere. [ Variable Angle Specular Reflectance Accessory (VASRA) ]