MicroAtmos Oy

Örninkatu 15 B, 24100 Salo

+358 40 577 5086


The Photo Detector Matrix is designed for light absorption/emission studies. It can detect light absorption changes from the light going through the sample or it can detect emission coming from the sample itself (luminescence).

Photo Detector Matrix consists of the 2 x 3 matrix with LED illumination and photodiode detectors (Fig. 1). The standard setup consists 6 different wavelengts: UV (370 nm), Blue (465 nm), Green (522 nm), Yellow (589 nm), Red (623 nm) and IR (830 nm).  It is possible to change LED’s for customer specific purposes from UV to IR area. For instance the LED’s can be all same colour, they can be chosen from commercially available range of LED wavelengths, etc. The light intensity can be varied linearly. The applied light can be pulsed or continuous. It is important to notice that if needed it is possible to change the photodetectors on sensor lid for some other sensor technologies like for example spectral detection sensors. 

There exists cavities on 2x3 matrix into which the Petri dishes will be put (Fig. 2). The standard Petri dish size for 2x3 matrix is (35 x 10) mm. Above the base matrix there will be the photodetector lid (also 2x3 matrix) which will collect the absorption / emission data from every Petri dish.  The surroundings of sensors are optically designed to collect as much light as possible. To increase the optical gain and /or filtering of incoming light the optical interlayer can be assembled between sensor lid and the base matrix. Please contact us for further details.

The design of 2x3 matrix is modular. It can be combined several 2x3 matrix together and that way increase for instance statistical confidence level by increasing the number of samples.

Photo Detector Matrix prototypes have been made for customer pilot project.

Fig. 2. The measurement setup.

 Fig. 1. The 2x3 matrix of standard photo detector matrix

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MicroAtmos Oy
Örninkatu 15 B
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MicroAtmos Ltd

Örninkatu 15 B

24100 Salo