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[ Identification | Description | Input parameters | Links ]
The Grating_trans Component
Transmission grating
Identification
- Site:
- Author: Erik B Knudsen (erkn@fysik.dtu.dk)
- Origin: DTU Physics
- Date: December 2016
Description
Model 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.
Input parameters
Parameters in boldface are required; the others are optional.| 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 | 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 | 2 | |||
| fixed_delta | 0 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Links
- Source code for
Grating_trans.comp.
[ Identification | Description | Input parameters | Links ]
Generated on 2025-03-31 19:18:19
