Diffraction

Single-slit diffraction

\begin{equation} \textnormal{ sin } \epsilon = \frac{m \, \lambda}{a} \quad (m \in \mathbb{Z} - 0) \end{equation} \begin{equation} I = I_0 \left( \frac{ \textnormal{sin} [\pi \, a (\textnormal{ sin } \phi)/\lambda] }{\pi \, a (\textnormal{ sin }\phi)/ \lambda} \right)^2 \end{equation}

Diffraction gratings

\begin{equation} d \textnormal{ sin } \chi = m \, \lambda \quad (m \in \mathbb{Z}) \end{equation}

X-ray diffraction

\begin{equation} 2 \, d \textnormal{ sin } \lambda = m \, \theta \quad (m \in \mathbb{W}) \end{equation}

Circular apertures

\begin{equation} \textnormal{ sin } \Delta_1 = 1.22 \frac{\Omega}{D} \end{equation}