WS400 High-Sensitivity Compact Spectrometer

The high-aperture optical bench of the WS400 has no moving parts and minimizes the number of reflective surfaces. The WS400 features a monolithic housing, thus ensuring long-time measurement stability. The case has internal fins (light traps) that allow reducing stray light – a typical problem of compact short-focal length instruments.

The WS400 may contain as a detector either one of two non-cooled Hamamatsu back-thinned CCD-arrays without a charge-storage section (back-thinned FFT CCD), operating in the binning mode. Both arrays have wide spectral range and excellent sensitivity in the UV (see below for the curves of each detector spectral sensitivity and their specifications). These two arrays differ in quantum efficiency, data reading rate, dynamic range, and in pixel active area size.

Upon request, the WS400 spectrometer can be optionally calibrated for spectral sensitivity.

Available calibration ranges:

• Cal-UV: 220–400
• Cal-VIS: 300–1050 nm

Calibration is carried out using certified light sources—a deuterium lamp for the UV range and a halogen lamp for the VIS range. It is performed via fiber input and remains valid for one year, provided the optical fiber remains connected. Calibration accuracy is ±10%.