def add_phase_shift(self, pattern, displ):
"""
Add phase shift corresponding to displ to complex pattern.
:param pattern: complex field pattern.
:param displ: displ(acement) (position) of the particle (m).
:return: modified complex field pattern.
"""
self.ensure_beam()
pattern = xp.asarray(pattern)
displ = xp.asarray(displ)
return pattern * xp.exp(1j * xp.dot(self.pixel_position_reciprocal, displ))
def get_fxs_photons(self,
particles,
beam_focus_radius,
jet_radius,
device=None):
raw_data = None
state, coords = distribute_particles(particles, beam_focus_radius,
jet_radius)
for i in range(len(state)):
this_data = self.get_pattern_without_corrections(
particle=state[i], return_type="complex_field")
this_data *= xp.exp(
1j * xp.dot(self.pixel_position_reciprocal, coords[i]))
if raw_data is None:
raw_data = this_data
else:
raw_data += this_data
return self.add_correction_and_quantization(xp.square(
xp.abs(raw_data)))