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Hi, everyone:
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My simulation is using one laser beam irradiate on a spherical shell, and this laser beam have a 45 degree angle to x-axis. I used the cylindrical geometry, and from the output hdf5 files, I found that the intensity of laser is not symmetrically on the surface of the shell. But when i used the cartesian geometry with same 45 degree incident laser, the intensity on the shell is uniform and symmetrically.
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I guess here are some problems when i'm seting up the laser beam. My laser setup in the .par file is as follows:
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useEnergyDeposition = .true.
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ed_maxRayCount = 20000
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ed_gradOrder = 2
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# Activate 3D-in-2D ray trace:
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ed_laser3Din2D = .true.
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ed_laser3Din2DwedgeAngle = 0.1
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### LASER IO OPTIONS ###
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ed_useLaserIO = .true.
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ed_laserIOMaxNumberOfPositions = 10000
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ed_laserIOMaxNumberOfRays = 128
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### SETUP LASER PULSES ###
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ed_numberOfPulses = 1<span style="white-space:pre;"> </span>
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# Define Pulse 1:
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ed_numberOfSections_1 = 4<span style="white-space:pre;"> </span>
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ed_time_1_1 = 0.0
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ed_time_1_2 = 0.01e-09
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ed_time_1_3 = 0.50e-09
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ed_time_1_4 = 0.51e-09
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ed_power_1_1 = 0.0
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ed_power_1_2 = 1.52e+012
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ed_power_1_3 = 1.52e+012
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ed_power_1_4 = 0.0
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### SETUP LASER BEAM ###
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ed_numberOfBeams = 1
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# Setup Gaussian Beam:
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ed_lensX_1 = 10.0<span style="white-space:pre;"> </span>
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ed_lensZ_1 = 10.0
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ed_lensY_1 = 0.0
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ed_lensSemiAxisMajor_1 = 3.0e-01
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ed_targetX_1 = 212.0e-04
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ed_targetZ_1 = 212.0e-04
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ed_targetY_1 = 0.0
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ed_targetSemiAxisMajor_1 = 225.0e-04
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ed_targetSemiAxisMinor_1 = 225.0e-04
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ed_pulseNumber_1 = 1
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ed_wavelength_1 = 0.351
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ed_crossSectionFunctionType_1 = "gaussian2D"
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ed_gaussianExponent_1 = 4.0
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ed_gaussianRadiusMajor_1 = 212e-04
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ed_gaussianRadiusMinor_1 = 212e-04
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ed_numberOfRays_1 = 4096
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ed_gridType_1 = "radial2D"
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ed_gridnRadialTics_1 = 64
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ed_semiAxisMajorTorsionAngle_1= 0.0
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ed_semiAxisMajorTorsionAxis_1 = "x"
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And in mesh parameters:
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geometry = "cylindrical"<span style="white-space:pre;"> </span>
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And, this shell is a hollow spherical shell with outer radius 300 microns and inner radius 150 microns.
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So, what should i do to let the intensity of the laser on the shell to be symmetrically to the 45 degree incident axis?
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Thank you for your attention and help !
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Best regards,
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<span style="font-size:small;">Ke Fang</span>
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<span style="line-height:22.1px;font-size:x-small;">phd student</span>
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<span style="line-height:22.1px;font-size:x-small;">Chinese Academy of Sciences</span>
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