scipy.constants.nu2lambda¶

scipy.constants.nu2lambda(nu)¶

Convert optical frequency to wavelength.

Parameters :

nu : float-like scalar or array-like

Optical frequency(ies) to be converted

Returns :

lambda : float or a numpy array of floats, corresp. to type of Parameters

Equivalent wavelength(s)

Notes

Computes $\lambda = c / \nu$ where c = 299792458.0, i.e., the (vacuum) speed of light in meters/second.

Examples

>>> from scipy.constants.constants import nu2lambda
>>> nu2lambda(np.array((1, speed_of_light)))
array([  2.99792458e+08,   1.00000000e+00])