Spherical Grating

TBA

Tracing Parameter

Mandatory:

• Reflectivity Type (see more in chapter Optical Elements)
• Slope Error
• World Position
• Misalignment

Sphere:

• Radius

Grating:

• vls parameter
• Line Density
• Order Of Diffraction

Cutout:

• Geometrical Shape
• Total Width
• Total Length

RML Object

To track a Spherical Grating using an RML File, you'll require an XML Object to encompass all the grating details. Remember, successful tracing requires you to specify a Light Source first. We suggest adding an Imageplane at the end for clearer results.

  <object name="Spherical Grating" type="Spherical Grating">
   <param id="geometricalShape" comment="rectangle" enabled="T">0</param>
   <param id="totalWidth" enabled="T">50</param>
   <param id="totalLength" enabled="T">200</param>
   <param id="gratingMount" comment="constant deviation" enabled="T">0</param>
   <param id="deviationAngle" enabled="T">10</param>
   <param id="entranceArmLength" enabled="T">10000</param>
   <param id="exitArmLength" auto="T" enabled="T">1000</param>
   <param id="radius" auto="T" enabled="T">1825.126977351541</param>
   <param id="designEnergy" auto="T" enabled="T">100</param>
   <param id="lineDensity" enabled="T">1000</param>
   <param id="orderDiffraction" enabled="T">1</param>
   <param id="alpha" auto="T" enabled="T">5.356547628646595</param>
   <param id="beta" auto="T" enabled="T">-4.643452371353405</param>
   <param id="lineSpacing" comment="constant" enabled="T">0</param>
   <param id="vlsParameter1" enabled="F">0</param>
   <param id="vlsParameter2" enabled="F">0</param>
   <param id="vlsParameter3" enabled="F">0</param>
   <param id="vlsParameter4" enabled="F">0</param>
   <param id="vlsParameter5" enabled="F">0</param>
   <param id="vlsParameter6" enabled="F">0</param>
   <param id="distancePreceding" enabled="T">10000</param>
   <param id="azimuthalAngle" enabled="T">0</param>
   <param id="lineProfile" comment="unknown" enabled="T">3</param>
   <param id="gratingEfficiency" enabled="T">0.5</param>
   <param id="blazeAngle" enabled="F">4</param>
   <param id="aspectAngle" enabled="F">90</param>
   <param id="grooveDepth" enabled="F">10</param>
   <param id="grooveRatio" enabled="F">0.65</param>
   <param id="multilayerFourierCoefficients" auto="T" enabled="F">11</param>
   <param id="multilayerIntegrationSteps" auto="T" enabled="F">50</param>
   <param id="reflectivityType" comment="Derived by Material" enabled="T">1</param>
   <param id="materialSubstrate" enabled="T">Au</param>
   <param id="roughnessSubstrate" enabled="T">0</param>
   <param id="densitySubstrate" auto="T" enabled="T">19.3</param>
   <param id="surfaceCoating" comment="Substrate only" enabled="T">0</param>
   <param id="numberLayer" enabled="F">2</param>
   <param id="materialCoating1" enabled="F"></param>
   <param id="thicknessCoating1" enabled="F">0</param>
   <param id="densityCoating1" auto="T" enabled="F">0</param>
   <param id="materialCoating2" enabled="F"></param>
   <param id="thicknessCoating2" enabled="F">0</param>
   <param id="densityCoating2" auto="T" enabled="F">0</param>
   <param id="alignmentError" comment="No" enabled="T">1</param>
   <param id="translationXerror" enabled="F">0</param>
   <param id="translationYerror" enabled="F">0</param>
   <param id="translationZerror" enabled="F">0</param>
   <param id="rotationXerror" enabled="F">0</param>
   <param id="rotationYerror" enabled="F">0</param>
   <param id="rotationZerror" enabled="F">0</param>
   <param id="worldPosition" enabled="F">
    <x>0.0000000000000000</x>
    <y>0.0000000000000000</y>
    <z>10000.0000000000000000</z>
   </param>
   <param id="worldXdirection" enabled="F">
    <x>1.0000000000000000</x>
    <y>0.0000000000000000</y>
    <z>0.0000000000000000</z>
   </param>
   <param id="worldYdirection" enabled="F">
    <x>0.0000000000000000</x>
    <y>0.0933532651278599</y>
    <z>-0.9956330488136518</z>
   </param>
   <param id="worldZdirection" enabled="F">
    <x>0.0000000000000000</x>
    <y>0.9956330488136518</y>
    <z>0.0933532651278599</z>
   </param>
   <param id="slopeError" comment="No" enabled="T">1</param>
   <param id="profileKind" comment="no Profile" enabled="F">2</param>
   <param id="profileFile" absolute="" enabled="F"></param>
   <param id="slopeErrorSag" enabled="F">0</param>
   <param id="slopeErrorMer" enabled="F">0</param>
   <param id="thermalDistortionAmp" enabled="F">0</param>
   <param id="thermalDistortionSigmaX" enabled="F">0</param>
   <param id="thermalDistortionSigmaZ" enabled="F">0</param>
   <param id="cylindricalBowingAmp" enabled="F">0</param>
   <param id="cylindricalBowingRadius" enabled="F">0</param>
  </object>