Spectral FT-IR sensor - NeoSpectra™ Micro for 1350 to 2500 nm

The world’s smallest FT-IR sensor of the NeoSpectra Micro™ is based on monolithic MEMS technology and is developed and produced by Si-Ware Systems.

In addition to the MEMS chip and InGaAs photodetector, the Micro contains several ASICs for device control and data processing, as well as an optical head. This already consists of a complete illumination unit and coupling optics, which are designed for reflection measurements. Customized optical heads can be developed. Via the Ball Grid Array (BGA) underneath, the Micro is soldered onto your own board and thus mounted mechanically stable, supplied with power and becomes addressable via SPI.
Hence, the NeoSpectra™ Micro is the ideal solution for NIR analysis in mobile handheld devices that require a very small size, a good price and a wide wavelength range.

WL range1,350 - 2,500 nm
S/N*>2,000:1 @ 2,350 nm
Resolution16 nm
Accuracy / Repeatability± 1.5 nm / ± 0.15 @ 1,400 nm
Temperature range-5 .... +40°C
InterfaceBGA / SPI
* at 2 s scan time


In the Development Kit the Micro is already soldered onto a test board and can be used directly as a plug-and-play solution to accelerate the development of your own application. Using the SpectroMOST platform-independent test software supplied, the device can be immediately controlled and spectra obtained.
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How it works

The NeoSpectra™ devices are based on a full Michel interferometer that is realised on a MEMS chip. A MEMS oscillating mirror represents the movable arm of the interferometer. From the coupled light arises an interferogram on the InGAs photodetector, from which the spectrum is calculated via Fourier-Transformation.

Development Kit

The Development Kit is a plug-and-play solution to allow working directly with the NeoSpectra Micro. This accelerates the learning process and enables you to quickly start developing your own application.
It consists of the test board to which the NeoSpectra™ Micro is soldered and which can be addressed via PINs on the bottom using SPI commands. Screwed onto the supplied Raspberry Pi, the NeoSpectra Micro can be connected to a computer or operated independently. The SpectroMOST test software is supplied for both computer and Raspberry Pi in order to use the sensor directly.

Typical Applications

Most qualitative and quantitative analysis possible in NIR with spectroscopy can be transferred to the NeoSpectra™ devices. Typical applications are for example:

  • Water content measurements of liquids, solid materials and powders for process and quality control
  • Identification of faked materials, such as the differentiation of silk, wool, cotton, elastane, etc.
  • Quantitative measurements of the composition of food or feed, e.g. the content of fat, protein and lactose of milk.
  • Characterization of plastics, e.g. via polymer identification such as polyethylene, polypropylene, polyvinylchloride etc.