GaussianPulse#
- class wake_t.physics_models.laser.laser_pulse.GaussianPulse(xi_c, a_0, w_0, tau, z_foc=0.0, l_0=8e-07, cep_phase=0.0, polarization='linear')[source]#
Class defining a Gaussian laser pulse.
- Parameters:
- xi_cfloat
Initial central position of the pulse along xi in units of m.
- a_0float
The peak normalized vector potential at the focal plane.
- w_0float
Spot size of the laser pulse, in units of m, at the focal plane.
- taufloat
Longitudinal pulse length (FWHM in intensity) in units of s.
- z_focfloat, optional
Focal position of the pulse.
- l_0float, optional
Laser wavelength in units of m. By default, a Ti:Sa laser with l_0=0.8e-6 is assumed.
- cep_phasefloat, optional
The Carrier Envelope Phase (CEP) in radian. This is the phase of the laser oscillation at the position where the envelope is maximum.
- polarizationstr, optional
Polarization of the laser pulse. Accepted values are ‘linear’ (default) or ‘circular’.
Methods
envelope_function(xi, r, z_pos)Return the complex envelope of the laser pulse.
evolve(chi, n_p)Evolve laser envelope to next time step.
Get the current laser envelope array.
get_group_velocity(n_p)Get group velocity of the laser pulse for a given plasma density.
Initialize laser envelope arrays.
set_envelope_solver_params(xi_min, xi_max, ...)Set the parameters for the laser envelope solver.