Description Usage Arguments Value Author(s)

Plot the reciprocal lattice and assosiated diffraction circles for a bigrating.

1 | ```
rcp.plot(a,b,k0,alpha)
``` |

`a` |
Period in x direction |

`b` |
Period in v direction |

`k0` |
in-plane wavevector of a grazing photon (for light circles and SPP plot) |

`alpha` |
Angle between x and v in real space (degrees) |

Produces a plot of the lattice and diffraction circles using base

Tom Constant

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