This signal lasts for only a very brief moment (up to one-trillionth of a second) and provides a clear "fingerprint" of the ...

In Caltech's new fingerprint technique, a single molecule adsorbs onto the phononic crystal resonator device. Then scientists measure the frequency shifts of four different vibrational modes of ...

To eliminate the need for conventional large infrared detectors, the researchers used ultra-confined HPhPs to directly detect molecular fingerprints in nanometer-thin molecular layers through the ...

Definition:Raman Spectroscopy is a sophisticated analytical technique used to observe vibrational, rotational, and other low-frequency modes in a system. This material characterization technique ...