ptyrad.utils.physics

Physics-related functions of probes, propagators, and constants, etc.

Functions

complex_object_interp3d(complex_object, ...)	Interpolate a 3D complex object while preserving multiscattering behavior.
complex_object_z_resample_torch(obj, dz_now, ...)	Resample a complex 3D object along the depth (z) axis while conserving amplitude product, phase sum, and total thickness.
get_EM_constants(acceleration_voltage, ...)
get_default_probe_simu_params(init_params)	Get default probe simulation parameters based on the init_params dict
hermite_like(fundam, M, N)
infer_dx_from_params([dx, dk, kMax, da, ...])	Infer the real-space pixel size (dx) based on available unit-related parameters.
make_fzp_probe(probe_params[, verbose])	Generates a Fresnel zone plate probe with internal Fresnel propagation for x-ray ptychography simulations.
make_mixed_probe(probe, pmodes, pmode_init_pows)	Make a mixed state probe from a single state probe
make_stem_probe(probe_params[, verbose])
near_field_evolution(Npix_shape, dx, dz, lambd)	Fresnel propagator
near_field_evolution_torch(Npix_shape, dx, ...)	Fresnel propagator
orthogonalize_modes_vec_np(modes[, sort])	Orthogonalize the modes using SVD-like procedure via eigen decomposition.
sort_by_mode_int_np(modes)