Graphical tools

The plots can be adjusted through standard chart settings:

Example: main evaluation window shows transmittance of a bandpass filter and target values (violet crosses)

Example: second evaluation window presents transmittance of the same bandpass filter in one of the high-transmittance ranges and in a larger scale. Spectral behavior at small incidence angles ican be also interesting:

• Wavelength,
• Angle of incidence,
• Refractive index of the ambient medium,
• Refractive index/Extinction coefficient of the substrate,
• Coating coordinate,
• Thickness of any layer (in this case additional setting – layer number – appears)
• Refractive index/Extinction coefficient of any layer (in this case additional setting – layer number – appears)
• Refractive index/Extinction coefficient of any material (in this case additional setting – layer number – appears)

Example: Settings and dependence of the coating transmittance (averages polarization, wavelength 1500 nm) on the refractive index of the last 58-th layer.

This powerful option can be applied in a combination with the Variator and provide all visual analysis possibilities of optical coatings designs.

You can compare dependencies related to different designs or combine dependencies calculated for different spectral or angular ranges.

You can save the plots as *.vtc2 files and combine them using stand-alone Plot Engine module.

You can export the numerical data of the plots using:

Right mouse button –> Chart –> Export –> Data –> Selection from Excel, text, HTML, etc. formats –> Save

You can modify axis, panels,  etc. using standard Chart tools.

Example: Settings and dependence of the color coordinates of the reflected light of a coating (averages polarization, chromaticities \(x\) and \(y\)) on the extinction coefficient of the second (metal-dielectric) layer.

Through Analysis –> Plot Engine option you can plot characteristics as functions of one or two parameters, according to the choice Y = f(X) or Z = f (X,Y). The list of arguments includes Wavelength, the Angle of incidence, Re(n) Ambient medium, Re(n) substrate, Im(n) substrate, coating coordinate, layer thickness, and Re(n) layer. The same set of arguments is provided for Y argument if you select a Z = f (X,Y) mode. In the same frame the range for the argument (From… To), the number of points (Points) and the argument increment between the points (Step) are specified.

All plots are ROTATABLE!

• *.vtc2 files (this format is used by the powerful OptiLayer Plot Engine tool)
• *.pdf files (these files can be opened with Adobe Acrobat tools, http://www.adobe.com)
• *.eps PostScript files (encapsulated postscript version, these files are suitable for many printers)
• *.svg files (Scalable Vector Graphics, http://www.w3.org/Graphics/SVG)
• *.vml files (Vector Markup Language), http://www.w3.org/TR/NOTE-VML
• *.xaml files (Extensible Application Markup Language), defined athttp://en.wikipedia.org/wiki/Extensible_Application_Markup_Language

• *.bmp files (bitmap graphics format)
• *.jpg files (JPEG bitmap)
• *.wmf files (Windows metafiles format)
• *.pcx files (Paintbrush format)
• *.gif files (CompuServe bitmap)
• *.png files (Portable Networks Graphics)
• *.tiff files (Tagged Image File Format)

The Digitize command is accessible from popup menus of Evaluation windows invoked by the right mouse button.

When any graphic plot in Evaluation, Refinement, Needle Optimization, Random Optimization and other windows is displayed, this command allows you to read exact numerical (X,Y) values of the plotted characteristics. When the Digitize command is activated, a vertical bar is displayed in the plot window to visually identify the graph point being evaluated, an additional window labeled “Values List” appears on the screen. The values list displays the exact numerical values of all spectral characteristics that are presented in the window.

Right mouse button –> Memorize plots