spectral_focal_curve¶
-
esis.optics.poletto.
spectral_focal_curve
(wavelength, diffraction_order, alpha, beta, entrance_arm_radius, grating_tangential_radius, grating_linear_groove_coefficient=<Quantity 0. 1 / mm2>)¶ Equation 33 of Thomas and Poletto (2003) :type wavelength:
astropy.units.Quantity
:param wavelength: The wavelength at which to evaluate the spectral focal curve :type diffraction_order:astropy.units.Quantity
:param diffraction_order: diffraction order of the light leaving the grating :type alpha:astropy.units.Quantity
:param alpha: Nominal incidence angle of the beam on the grating. :type beta:astropy.units.Quantity
:param beta: Nominal diffraction angle of the beam off the grating. :type entrance_arm_radius:astropy.units.Quantity
:param entrance_arm_radius: Distance from the center of then grating to the center of the source. :type grating_tangential_radius:astropy.units.Quantity
:param grating_tangential_radius: Tangential radius of the diffraction grating :type grating_linear_groove_coefficient:astropy.units.Quantity
:param grating_linear_groove_coefficient: Linear coefficient for the polynomial variable line spacing :return: The length of the exit arm for optimal spectral focus- Parameters
wavelength (astropy.units.Quantity) –
diffraction_order (astropy.units.Quantity) –
alpha (astropy.units.Quantity) –
beta (astropy.units.Quantity) –
entrance_arm_radius (astropy.units.Quantity) –
grating_tangential_radius (astropy.units.Quantity) –
grating_linear_groove_coefficient (astropy.units.Quantity) –