Hamamatsu Photonics has introduced the MEMS FPI C13272 – a single element detector designed to demonstrate the latest development in micro-electro-mechanical systems (MEMS) technology.
A voltage controls the size of the gap between two mirrors in a MEMS structured sensor. The size of this gap determines the wavelength of light that is allowed to pass through.
By quickly changing the voltage across these mirrors, the structure acts as a tuneable filter. This means that the user effectively has a spectrometer but with the low cost and small footprint of a single element sensor.
A device like the MEMS FPI C13272, which is able to give spectral information by utilising a Fabray-Perot interferometer, opens up avenues in applications like atmospheric measurement; where handheld devices require components that are low size and low power consumption.
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