default fluence_model

fluence_model default … end_fluence_model
fluence_model default
  base fluence model commands

  atmosphere_model ...
  haze_model ...
end_fluence_model

The default fluence model provides a representation of beam jitter, diffraction, atmospheric turbulence, and atmospheric extinction. It is based on the paper “High Power Laser Propagation” (F. Gebhardt, Applied Optics, vol.15(6), 1479-1493). This model requires valid atmospheric_coefficients for the given wavelength or laser_type, atmosphere_model, and haze_model. Currently these can be found in any WSF release (1.7.5 or later), in the directory hel_demo/atmosphere.

Commands

base fluence model commands

see base fluence model commands

atmosphere_model <integer-value>

Specify the atmosphere model to use. Valid values are 1-6 and correspond with the following:

  1. Tropical Atmosphere

  2. Midlatitude Summer (default)

  3. Midlatitude Winter

  4. Subarctic Summer

  5. Subarctic Winter

  6. 1976 U.S. Standard

Note

Currently, all models are only supported for the 1064 nanometer wavelength; otherwise, only model 2 (Midlatitude Summer) is supported.

haze_model <integer-value>

Specify the haze model to use. Valid values are 1-5 and correspond with the following:

  1. RURAL Extinction, VIS = 23 km (Clear) (default)

  2. RURAL Extinction, VIS = 5 km (Hazy)

  3. Navy maritime Extinction

  4. MARITIME Extinction, VIS = 23 km

  5. Urban Extinction, VIS = 5 km

Note

Currently, all models are only supported for the 1064 nanometer wavelength (laser_type nd_yag); otherwise, only model 1 (clear) is supported.