[12a-PA1-1~8] 3.3 Information photonics and image engineering

[12a-PA1-2] Phase Recovery by Laguerre-Gaussian Beam

Shohei Kito¹, 〇Katsuhiro Uno¹ (1.Graduate School of Sci. and Eng., Ibaraki Univ.)

Keywords:Fourier ptychography, iterative phase retrieval method, Laguerre-Gaussian beam

In the Fourier ptychography, we tried to recover the phase of the object using a Laguerre-Gauss (LG) beam as the probe beam. In the simulation, the recovery accuracy of the phase using the LG beam was improved compared to the case using the normal Gaussian beam. Also, unlike the case of using a normal Gaussian beam, the recovery accuracy was improved as the beam diameter increased.