Part II · Chapter 13

Analysis Tools

The Analysis Portal

Click Analysis Portal in the toolbar. Each detector in the setup has a row, and each row holds one or more analyses. + Add analysis adds one. For each analysis you set:

Analysis type, from the list below.
#Rays, the number of rays traced from each light source.
#Pxls X / Y, the resolution of the result.
Display, for example gray scale.

The Analysis portal: a Light sources selector, then a row per detector (D6, D7, D8) with analyses underneath, each with an analysis type dropdown, #Rays per light source, #Pxls X and Y, and Display; an Add analysis button, and Run analysis and Turbo buttons at the bottom — Figure 13.1, The Analysis Portal with three detectors.

Run analysis computes every analysis that is checked. The Light sources selector at the top chooses which sources take part.

Fast and advanced analyses

	Fast	Advanced
Maximum resolution	100 × 100	About 20 million pixels in total
Maximum rays per light source	200	Unlimited
Spot (incoherent irradiance)	Yes	Yes
Coherent irradiance, coherent phase, PSF, MTF, wavefront	No	Yes

The default resolution is 100 × 100. Raising a fast analysis above it is a Professional-tier feature.

Analysis types

Incoherent irradiance

Spot (Incoherent Irradiance), the irradiance map.
Spot (Incoherent Irradiance) Polarized, the same, per polarization component.

Coherent irradiance and phase, each computed with one of three propagation methods, Huygens, Fresnel or Fresnel Far, which trade accuracy for speed:

Spot (Coherent Irradiance) and Coherent Phase, with a Polarized and a Polarized Raw variant.

A phase analysis needs a polarization component, X, Y or Z; None is disabled for it.

Image quality

Huygens PSF and Fresnel PSF (Convolution), the point spread function.
Huygens MTF and Fresnel MTF (Convolution), the modulation transfer function.
Huygens Wavefront and Fresnel Wavefront (Convolution), the wavefront error.

Other

Spectral Collection Analysis
Mapping Image

Diffraction settings

The coherent analyses depend on a resolution set per surface. The Diffraction Settings panel lists the surfaces on the beam path; select one to set its resolution. Locking a surface keeps its resolution fixed while you change others.

Viewing several results

Each result opens in its own floating window. Drag a window aside by its title bar, then open the next result to see them side by side.

Reading a result

A result window shows:

The irradiance or phase map. Click a point to read its pixel and coordinate values.
X and Y cross-section charts, with fields for the row and column, in pixels or mm. Right-click a point on the map to place the cross-sections through it.
The polarization component: None, X, Y or Z.
The light source filter: Total, per light source or per coherence group.
The resolution, the physical size in mm, the total hits, the total power and the date of the run.

For multi-wavelength results, the multi-channel view shows each color channel with its own histogram and slider.

The Poincaré sphere view plots a ray's polarization state on the sphere.

The extended view

Click into a result to open its extended view, with a toolbar for:

Display type: False Color, Gray Scale, Spectral View, User-defined Colors (Professional-tier), XY Cross Section, Encircled Energy, and single-axis X and Y cross-sections.
Zoom in, zoom out and reset zoom.
A wavelength filter, to show all wavelengths or selected ones.
A linear / logarithmic scale switch.
Download as PNG or JPEG, as a full-size image with the raw pixel data, or as XLSX with the full data and the detector settings.

Imaging System

The Imaging System tool computes pupils, focal length and magnification for a group of parts. It has its own section.