parameters: (E_in_a0, lambda_laser=800.e-9)
return_statement: return intensity
docstring: Convert electric field in a0 to intensity in SI.
  
          :param E_in_a0: electric field [unit: a0]
          :param lambda_laser: laser wavelength [unit: m]
  
          :returns: intensity [unit: W/m^2]
docstring_summary: Convert electric field in a0 to intensity in SI.
docstring_tokens: Convert electric field in a0 to intensity in SI .
function: def convert_a0_to_Intensity(E_in_a0, lambda_laser=800.e-9):
          """Convert electric field in a0 to intensity in SI.
  
          :param E_in_a0: electric field [unit: a0]
          :param lambda_laser: laser wavelength [unit: m]
  
          :returns: intensity [unit: W/m^2]
          """
          E_in_SI = E_in_a0 \
              * sc.m_e * sc.c * 2. * sc.pi * sc.c \
              / (lambda_laser * sc.e)
  
          intensity = 0.5 * sc.c * sc.epsilon_0 * E_in_SI**2.
  
          return intensity
function_tokens: def convert_a0_to_Intensity ( E_in_a0 , lambda_laser = 800.e-9 ) : E_in_SI = E_in_a0 * sc . m_e * sc . c * 2. * sc . pi * sc . c / ( lambda_laser * sc . e ) intensity = 0.5 * sc . c * sc . epsilon_0 * E_in_SI ** 2. return intensity