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Description
The Rn Distance Position Apodization option scales all rays in the source relative to their distance from the point, P0, defined in the dialog. The rays are scaled by [r / r0]n, where r = | Rp - P0 | is the distance from a given ray position, Rp, to the reference point, P0, as set in the dialog by the X, Y, and Z coordinates. This distance can be normalized with the r0 factor. The exponent, n , can be negative, positive, integer or non-integer.
The following image shows a bundle of coherent rays with a 1-inch semi-diameter that have been scaled by [r / r0]n, with n = -2, r = 1, and P0 = [0, 0, 1.5]. Also shown is the source irradiance distribution.
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Navigation
This feature can be accessed by selecting R^n distance apodization from a given point as the Position Apodization type on the Power tab of a Detailed Source dialog box.
Controls
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Control
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Inputs
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Defaults
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Total Power
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Total power of the source after both the position and direction apodization functions have been applied to the rays.
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1
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Position Apodization
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Type
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Pull down menu of available position apodization options. Choose R^n distance Apodization from a given point.
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Uniform
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Exp
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Exponent in the [r / r0]n scale factor.
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-2
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X
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X component of the P0 vector, which is used to compute the distance r = | Rp - P0 |.
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0
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Y
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Y component of the P0 vector, which is used to compute the distance r = | Rp - P0 |.
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0
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Z
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Z component of the P0 vector, which is used to compute the distance r = | Rp - P0 |.
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1
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Dist
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Normalization value in the denominator of the scale factor [r / r0]n.
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1
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Direction Apodization
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Type
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Pull down menu of available direction apodization options.
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Uniform
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Parameters
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There are no parameters for this option.
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OK
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Accept settings and close the dialog box.
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Cancel
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Discard settings and close the dialog box.
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Apply
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Apply settings and keep the dialog box open.
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Help
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Access this Help page.
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Related Topics
Position Apodization - Gaussian Apodization
Position Apodization - Amplitude / Phase Mask on Rectilinear Grid
Position Apodization - Uniform Unit Apodization
Detailed Source
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Copyright © Photon Engineering, LLC
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