Equation of the Trajectory of the Maximum Laser Radiation in Anderson Differential Cuvette

The necessity of research into the nature of the spread of the maximum of the laser radiation pattern in a differential Anderson cuvette is substantiated. A new technique has been developed which takes into account all factors when constructing the trajectory of the maximum laser radiation in the cuvette, and also outside it (up to the sensor of the photodiode bar, on which the radiation is recorded). For the first time, an equation has been derived to study the change in the nature of the spread trajectory of the laser radiation maximum in the Anderson cuvette, and beyond it, depending on various parameters of the cuvette, the values of the refractive indices of the standard
$n_{s}$
and the measurable
$n_{m}$
liquid. The results of checking the reliability of the developed equation and experimental data are presented.