FEATURE PORTABLE SPECTROSCOPY LIGHTING


Scaling spectroscopy


Matthew Dale discovers how scaling spectrometers down to the chip level enables them to be mass- produced in standard MEMS foundries, making spectroscopy more affordable for various new applications


P


ortable, wearable and disposable could all be used when describing modern technology. It’s no surprise then to hear the same


terms come up when exploring the innovations being made in spectroscopy, a field that has recently seen a new range of compact, affordable spectrometers based on emerging chip-level technology that allows them to be mass-produced in standard MEMS foundries. With both industrial and academic


groups taking their own approach to scaling the technology, use cases are being realised across various industries, spurred on by the reduced price tag and increasing availability of spectroscopic technology.


Testing for traces Researchers at IBM’s Thomas J Watson research centre demonstrated a chip-based


20 Electro Optics March 2018


Artistic rendering of a silicon photonic waveguide absorption spectrometer @electrooptics | www.electrooptics.com


Joe Green, Beaverworks Canada


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