The influence of one dimensional plane thermal wave on probing Gaussian beams phase and deflection by complex geometrical optics methods has been analyzed in the work. The probing beam detection by quadrant photodiode has been investigated. The dependence of photodiode current signal on the probing beam diameter, its waist, sample position, angular modulation frequency and the height of the beam over the sample has been studied.
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Using complex geometrical optics methods the influence of a one dimensional plane thermal wave on probing Gaussian beam phase was analysed. Detection of the probing beam parameters by quadrant photodiode was investigated. The dependence of the photodiode current signal on probing beam diameter, its waist, sample position, angular modulation frequency, the height of the beam over the sample and the focal length of the lens at the input of experimental setup was studied.
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