pynlo.utility#

Time and frequency grid utilities and other miscellaneous helper functions.

The submodules contain calculator-type functions for converting between physically relevant parameters related to the linear and nonlinear susceptibilities, as well as an efficient interface to fast Fourier transforms.

Modules#

`pynlo.utility.chi1`	Conversion functions and other calculators relevant to the linear susceptibility.
`pynlo.utility.chi2`	Conversion functions and other calculators relevant to the 2nd-order nonlinear susceptibility.
`pynlo.utility.chi3`	Conversion functions and other calculators relevant to the 3rd-order nonlinear susceptibility.
`pynlo.utility.fft`	Aliases to fast FFT implementations and associated helper functions.

Functions#

`vacuum`(v_grid[, rng])	Generate a root-power spectrum due to quantum vacuum fluctuations.
`taylor_series`(x0, fn)	Calculate a Taylor series expansion given the derivatives of a function about a point.
`shift`(f_t, dt, t_shift)	Fourier shift.
`resample_v`(v_grid, f_v, n)	Resample frequency-domain data to the given number of points.
`resample_t`(t_grid, f_t, n)	Resample time-domain data to the given number of points.

Classes#

TFGrid(n, v_ref, dv[, alias])

Complementary time- and frequency-domain grids for the representation of analytic functions with complex-valued envelopes.