[ Identification | Description | Input parameters | Links ]
Grating_trans ComponentModel of a 1D rectangular transmission grating based on the theory developed in Schnopper et. al., Applied Optics, 1977. The grating lines are assumed to be vertical. Within each period a fraction gamma is the "open" fraction. (I.e. 1 is completely open). At present only absorption in the substrate (modelled by the thickness sdepth) is included. This component is currently undergoing validation. Example: Grating_trans( xwidth=25e-3, yheight=25e-3, gamma=0.4, period=2000e-10, zdepth=5100e-10, max_order=3, material="Au.txt")
| Name | Unit | Description | Default | |
| xwidth | m | Width of the grating. Defines how many lines there are in total. | 1e-3 | |
| yheight | m | Height of the grating. | 1e-3 | |
| period | m | Distance between grating grooves. | 1e-6 | |
| gamma | 0-1 | Ratio between groove and period aka duty cycle. 1 means fully open. | 0.5 | |
| zdepth | m | Depth of grooves. | 1e-6 | |
| sdepth | m | Thickness of substrate. The default is to have no substrate - i.e. rods. | 0 | |
| material | str | Data file containing the material from which the grating is made. | "Au.txt" | |
| substrate | str | Data file containing material data for the substrate. | "" | |
| max_order | 1 | Maximum order to diffract | 2 | |
| fixed_delta | 0/1 | Set delta to the given constant. Useful for debugging. | 0 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Grating_trans.comp.
[ Identification | Description | Input parameters | Links ]
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