finesse.components.mirror.Mirror
¶
Overview
- class finesse.components.mirror.Mirror(name, R=None, T=None, L=None, phi=0, Rc=inf, xbeta=0, ybeta=0, misaligned=False)[source]¶
Bases:
finesse.components.surface.Surface
The mirror component represents a thin dielectric surface with associated properties such as reflectivity, tuning, and radius of curvature. It has two optical ports p1 and p2 which decsribe the two beams incident on either side of this surface. It also has a mechanical port mech which has nodes for longitudinal, yaw, and pitch motions. These mechanical nodes are purely for exciting small signal oscillations of the mirror. Static offsets in longitudinal displacements are set by the phi parameter (in units of degrees), yaw by the xbeta parameter, and pitch the ybeta parameter.
- Parameters
name : str
Name of newly created mirror.
R : float, optional
Reflectivity of the mirror; defaults to 0.5.
T : float, optional
Transmittance of the mirror; defaults to 0.5.
L : float, optional
Loss of the mirror; defaults to 0.0.
phi : float, optional
Tuning of the mirror (in degrees); defaults to 0.0.
Rc : float or container of two floats, optional
The radius of curvature of the mirror (in metres); defaults to a flat mirror (Rc=np.inf). Astigmatic mirrors can also be set with Rc=(Rcx, Rcy).
xbeta, ybeta : float, optional
Misalignment of the mirror in yaw and pitch in units of radians
Properties
Numeric ABCD matrix from port 1 to port 1 in the tangential plane. |
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Numeric ABCD matrix from port 1 to port 1 in the sagittal plane. |
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Numeric ABCD matrix from port 1 to port 2 in the tangential plane. |
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Numeric ABCD matrix from port 1 to port 2 in the sagittal plane. |
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Numeric ABCD matrix from port 2 to port 1 in the tangential plane. |
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Numeric ABCD matrix from port 2 to port 1 in the sagittal plane. |
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Numeric ABCD matrix from port 2 to port 2 in the tangential plane. |
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Numeric ABCD matrix from port 2 to port 2 in the sagittal plane. |
Methods
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Returns the ABCD matrix of the mirror for the specified coupling. |