macro.saturation_intensity
macro.saturation_intensity(decay_rate, wavelength)Saturation intensity of a cycling transition, pi h c Gamma / (3 lambda^3).
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| decay_rate | float | Natural linewidth Gamma / 2 pi, in MHz. |
required |
| wavelength | float | Transition wavelength, in nm. | required |
Returns
| Name | Type | Description |
|---|---|---|
| float | I_sat in mW/cm^2. For the Rb87 D2 line (6.065 MHz, 780.24 nm) this |
|
| float | is 1.67 mW/cm^2. |