By applying a proprietary MEMS technology, Hamamatsu Photonics has succeeded in developing a palm-sized Fourier transform infrared spectrometer (FTIR) engine.
The high sensitivity to near-infrared light at wavelengths from 1.1 to 2.5 µm makes it possible to equip portable FTIR instruments for analytical applications, e. g. for real-time monitoring of chemicals, non-destructive measurement of moisture and layer thicknesses in production lines, and sorting of food or plastics. A sample is irradiated with IR light and the intensity of the transmitted or reflected light is measured for each wavelength to analyze the type and amount of substances contained.
The optical interferometer is the biggest part of such a device, making most FT-IR spectrometers bulky bench-top instruments. By using our own unique MEMS technology, Hamamatsu have reduced the size so the whole device fits on a palm, enabling interferometry within handheld systems.