finesse.components.cavity.Cavity.m¶
- property Cavity.m¶
The stability of the cavity, in both planes, given by the \(m\)-factor:
\[m = \frac{A + D}{2}, \]where \(A\) and \(D\) are the relevant entries of the cavity round-trip ABCD matrix. The cavity is stable if the following condition is satisfied:
\[-1 \leq m \leq 1. \]- Getter
Returns a
numpy.ndarray
of the cavity stability in the tangential and sagittal planes, respectively. (read-only).