Structure and optical design features of the compact S150 spectrometer provide an opportunity of optimizing spectral range and resolution of the device at the stage of ordering to meet the requirements of specific system applications.

A diffraction grating you choose from the specifications below or other upon prior agreement with the manufacturer will be fitted to your S150A, and the device will be adjusted to a spectral interval of your choice with a fixed width within the detectable range of the grating.

APPLICATIONS

• laser and LED wavelength characterization

• plasma control

• quality spectrum analysis of any light sources in the 200-1100 nm range

Advantages of the S150 spectrometer

• high resolution – up to 0.015 nm

 
• possibility to optimize resolution and spectral range at the stage of ordering to meet user requirements

 
• powering and control from a PC via USB cable

 
• friendly interface compatible with Windows 98/ME/2000/XP

 
• no external power requirements

 
• using quartz fibers ensures flexible arrangement of your system components

 

The S150 spectrometer with 1800 lines/mm diffraction grating operated in the III spectrum order at 200-350 nm (width of the concurrently measured spectral interval is 23 nm) allows resolving mercury lines at 313.184 nm and 313.155 nm. The picture below shows the fragment of the corresponding spectrum.

Type of the selected detection system determines features of the S150 spectrometer.

Linear image sensors TCD 1304AP and TCD 1205D of Toshiba installed in the S150-…-3648 and S150-…-2048 feature high sensitivity; large quantity of relatively narrow sensor pixels ensures high resolution and precise wavelength detection. However, when detecting wide-band spectra with the S100-3648 and S100-2048, spectrum modulation of about 20% and step close to 50nm can be observed, thus limiting to some extent their application in spectrometry. The software allows the user to enter correction of recorded signal intensity in a selected spectral range. The manufacturer does not perform such correction.

Linear image sensor S8378-1024 installed in the S150-… -1024 provides excellent linearity, wide dynamic range and complete absence of spectrum modulation. However, it is characterized by relatively lower sensitivity and due to a wider pixel slightly loses in sense of resolution to devices based on Toshiba arrays.

Two-channel spectrometer S150-II
gives the possibility to install any two diffraction gratings listed in the specifications above with alternate spectral range recording of both channels. The optical scheme of the S150-II spectrometer does not contain any movable elements and is free from the related problems. The only movable element of the device is a shutter cutting the optical beam path in one of the channels. Moving the shutter from one spectrometer channel to the other (changing spectral range of the S150-II operation) is performed manually by a simple turn of the two-position switch.