Infrared Spectroscopy of N2O
I don't know what flex and link voltage are; however, here's the rest of it as per this site at UCLA and this homework solution key from Illinois State:

The $\ce{N-N}$ stretch is at $\pu{2200 cm-1}$, the $\ce{N-O}$ stretch is at $\pu{1290 cm-1}$, and the doubly-degenerate $\ce{N-N-O}$ bend is at $\pu{590 cm-1}$.