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Innovation For Spectroscopic Instruments

Spectroscopy is the study of the interaction between matter and electromagnetic radiation. This type of study originated from light study through a prism, then the parameters were expanded to include any interaction with radiative energy as a function of its wavelength. Spectroscopic studies were central to the development of Quantum mechanics, allowing scientists to have a greater understanding of spectra and the unique characteristics of atoms.

Radiative Energy

Studies of radiative energy determine the type of radiative energy involved in an interaction. These types of radiative energy include,

Indium Gallium Arsenide

Indium Gallium Arsenide (InGaAs) is usually the material used in infrared spectroscopy for studying light in the wavelength range of 0.9 to 1.7 microns. The InGaAs camera series provide the most optimised and compact research grade platform for spectroscopy applications. The vacuumed, Thermo-Electrically cooled sensors reach temperatures of – 90C, where the best signal to noise ratio can be achieved in this spectral region. Dark current will improve below-90C where black body radiation will dominate, while the sensor’s Quantum Efficiency (QE) will be impaired at this temperature, which leads to a lower signal to noise ratio.

The added benefits of InGaAs

iDus Spectroscopy CCD

Andor has many vacuum CCD detectors in the field and have been at the forefront of CCD technology for many years now. Designed to give ultra-sensitivity and a high dynamic range, these detectors deliver the performance normally reserved for high-end spectroscopy.

Applications for InGaAs

The main applications for InGaAs are,

Research into InGaAs material with high quantum efficiency and low dark current has revolutionised the development of spectroscopy camera systems, allowing for long exposure data acquisition.

Spectroscopic Instruments

The development of these highly sensitive devices has always been pioneered by Andor, who are the market leaders in high-resolution spectroscopy. The company provides high-level solutions for many scientific and industrial experiments, at an affordable cost. With their ongoing development, Andor looks to continue to lead the way in this specialised field for many years to come.

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