Where to Buy Mid-infrared Laser Sources

The spectral region between optics and electronics lying in the mid-infrared is difficult to access. Nevertheless it is of great spectroscopic interest because it hosts the majority of molecular finger prints: important vibrational modes with energies in the spectral range of 670 cm^-1 to 3400 cm^-1 can be accessed by exciting the sample at wavelengths of 3 μm to 15 μm.

TOPTICA’s ultrafast fiber laser FemtoFiber dichro midIR generates powerful radiation tunable between 3 μm – 15 μm that is ideally suited for spectroscopy and (nearfield) microscopy applications. Based on difference frequency generation (DFG) of two optically synchronized laser pulses at tunable wavelengths of 1 – 2 μm a highly stable broadband emission of approximately 400 cm^-1 is generated. Here, the powerful fundamental output at 1560 nm of an erbium-doped ultrafast fiber laser is superimposed with the long or short wavelength part of a supercontinuum.

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For the mid-IR region, APE offers the Carmina, a professional IR light-source for the integration with scattering SNOM and AFM-IR microscopes. Carmina sets new standards in resolution, sensitivity and tuning range due to its OPO/DFG architecture. The unique combination of 300 cm^-1 broadband as well as 20 cm^-1 narrowband emission covers the two complementary nanoscale IR techniques s-SNOM and AFM-IR.

The outstanding high output power between 5 mW and 300 mW in combination with an extremely low noise level is addressing a wider range of applications in the near-field imaging & spectroscopy field.

Menlo Systems mid-infrared lasers based on Menlo figure 9® patented laser technology are targeting the wavelength range from 1 μm to beyond 10 μm. Systems are available from single femtosecond lasers to full mid-infrared optical frequency comb systems. Applications range from sensing to high precision laser spectroscopy.

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