4. Conclusion
Nanomechanical IR spectroscopy (NAM-IR), with its effective intrinsic ENM sampling, has been presented as an excellent tool for fast chemical analysis of minute sample amounts.
The geometry of the mechanical string resonators used for NAM-IR is important, and in accordance with the appertaining theory, the results presented here show that long and narrow strings are preferable for both efficient sampling and sensitive measurements. However, the longer relaxation time for long and narrow strings will have to be accounted for.
NAM-IR is still in its infancy, and accordingly several issues can be improved, including the bulky and not very user-friendly experimental setup, and the IR laser. Furthermore, the sensitivity when measuring a mixture, or another complex sample, can be enhanced by improving the frequency setup to measure larger intensity differences.