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Developers in both industry and research use mid-infrared (MIR) spectrometers for non-invasive characterization of gases, liquids, and solids as well as characterization of light sources. NLIR is glad to present unprecedented upconversion technology, which can power VIS/NIR spectrometeres with MIR spectra readout in real time.
By combining NLIR’s upconversion solution — the SPEKTRUM Wavelength Converter — with high-end, commercially available VIS/NIR spectrometers in a BUNDLE Spectrometer configuration, powerful mid-infrared analysis becomes both accessible and efficient. The Wavelength Converter shifts the MIR light to the VIS/NIR range, allowing standard silicon-based spectrometers to detect it. The two devices are simply connected via an optical fiber — no additional components or setup required.
Read MIR Spectra with VIS/NIR spectrometer
NLIR recommends two BUNDLE Spectrometer configurations: Best Seller with Avantes AvaSpec Varius and Best Performer with Wasatch Cobra 800 VIS/NIR spectrometers that provide outstanding measurement performance unattainable with traditional MIR systems.
The result? High signal response, excellent resolution, and ultra-fast spectral acquisition. Existing software used with the VIS/NIR spectrometer remains fully compatible with the BUNDLE — NLIR provides a straightforward wavelength translation to complete the integration.
Compare the two BUNDLE Spectrometer options below and get in touch with us for more information.
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Demo 2: Capturing 80.000 mid-infrared spectra per second
NLIR‘s kHz-rate spectrometer can upconvert mid-IR light to near visible wavelengths. This means that you can benefit from CMOS technology to capture the photons.
40 kHz Single Pulse Measurement
Single pulses from a super-continuum light source with a bandwidth of 3.0 µm – 4.2 µm and a repetition rate of 40 kHz of 2 ns pulses were measured with 80 kHz readout rate. In the figure, (a) shows raw data of 12 ms data acquisition, (b) shows a zoom where every other readout is empty as expected from 40 kHz rep-rate and 80 kHz sampling, (c) shows 10 raw consecutive spectra. The fluctuations in the spectra are by far dominated by noise from the light source.
Based on this measurement, NLIR’S BEST PERFORMER Bundle Spectrometer is capable of characterizing fast modulations of infrared lasers and other dynamic events.
