Hamamatsu Corporation (Bridgewater, NJ) has announced the release of the C12666MA microspectrometer, a UV-VIS spectrometer about the size of a fingertip. Its miniature components, fabricated using MEMS (micro-electro-mechanical systems) technology, allow it to be a fraction of the size of traditional spectrometers. In addition, its hermetically sealed package makes it usable in high-humidity environments that traditional spectrometers do not tolerate well.

The C12666MA micro-spectrometer consists of a nanoimprinted grating and a sensor chip with an air gap between them. The sensor chip features a CMOS image sensor sensitive to 340-780 nm wavelengths and an entrance slit etched into the silicon. Etching the slit in silicon instead of using a traditional metal slit reduced the size of the C12666MA. The sensor and grating chips are sealed within a small hermetic package measuring 20.1 x 12.5 x 10.1 mm and weighing 5 grams.

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This article first appeared in the May, 2015 issue of Photonics Tech Briefs Magazine.

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