scipy.constants.lambda2nu#
- scipy.constants.lambda2nu(lambda_)[source]#
Convert wavelength to optical frequency
- Parameters
- lambda_array_like
Wavelength(s) to be converted.
- Returns
- nufloat or array of floats
Equivalent optical frequency.
Notes
Computes
nu = c / lambda
where c = 299792458.0, i.e., the (vacuum) speed of light in meters/second.Examples
>>> from scipy.constants import lambda2nu, speed_of_light >>> lambda2nu(np.array((1, speed_of_light))) array([ 2.99792458e+08, 1.00000000e+00])