title: Single-detector micro-electro-mechanical scanning grating spectrometer.
abstract: A compact, robust grating spectrometer based on an optimised micro-electro-mechanical grating mirror component has been developed, built, and characterised. The application of an oscillating reflection grating micro-mirror component as scanning dispersive element in a modified Czerny-Turner monochromator layout enables the design of compact grating spectrometers capable of acquiring full spectra using a single detector element. Designed for a wavelength range between 1200 and 1900 nm, the spectrometer features a spectral resolution of 10 nm with wavelength stability better than +/-0.5 nm. One-hundred scan spectra can be acquired in less than one second, or spectral changes can be monitored at time a resolution of less than 10 ms. In combination with a fibre-optic interface and a typical weight of less than 1 kg, this makes this novel type of fully portable micro-electro-mechanical near-IR scanning spectrometer an interesting alternative to existing spectrometers and opens a range of new applications, in particular the detection of major and minor components in the near-IR.
authors.affiliation: CTR Carinthian Tech Research AG, Europastrasse 4, 9524 Villach/St. Magdalen, Austria. martin.kraft@ctr.at
authors.forename: M
authors.initials: M
authors.lastname: Kraft
authors.forename: A
authors.initials: A
authors.lastname: Kenda
authors.forename: A
authors.initials: A
authors.lastname: Frank
authors.forename: W
authors.initials: W
authors.lastname: Scherf
authors.forename: A
authors.initials: A
authors.lastname: Heberer
authors.forename: T
authors.initials: T
authors.lastname: Sandner
authors.forename: H
authors.initials: H
authors.lastname: Schenk
authors.forename: F
authors.initials: F
authors.lastname: Zimmer