Detector Options – a Tech Note Collection

 

Ibsen’s spectrometers offer a range of fast detector options. Choosing the right detector for your application can be a challenge, so below we have gathered some of our best technical notes on detectors along with a few tips and tricks we believe would be helpful for your spectrometer projects when navigating through all the detector options.

Quantum Efficiency in Detectors 

The sensitivity of different detectors is not always reported equally in datasheets. Some use sensitivity in A/W, others may report a sensitivity of V/(lx s), and finally some report it as quantum efficiency.

This makes it difficult to perform direct comparisons and to find the best suited detector. In our technical note, we provide guidelines for converting between the various ways to specify sensitivity.

 

Noise in Detectors

How do you select the right detector for your spectrometer? One of the most important goals in acquiring good spectroscopic data is getting the best signal-to-noise ratio.

In this technical note, we review the factors that contribute to the noise both theoretically and in practice. We compare four commonly used detectors – CMOS, CCD, and BT-CCD. These results can help you select the best detector for your application.

 

Detector Selection Guide

Detector options - a guide to select the right detector

We also suggest you check out our popular detector selection guide that you can use to identify which type of linear array detector best suits your spectroscopy application based on wavelength range, high sensitivity versus high signal-to-noise ratio and integration time. It is an important decision and this guide makes it easier to get it right.

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