Abstract

A technique is performed to quantitatively evaluate the intensity and phase of the diffraction orders generated by tailored phase gratings displayed onto a liquid-crystal spatial light modulator (LC-SLM). The SLM displays the grating together with a lens to obtain the Fourier transform. The setup is converted into a polarization common-path interferometer by simply rotating a polarizer. This configuration allows a phase-shifting interferometry algorithm to be applied to retrieve the phase of the diffraction orders. The quadratic phase arising in the system, which must be subtracted, is calibrated using triplicator gratings of varying periods. Various tailored designs with controlled phase shift between diffraction orders are experimentally tested to prove the advantage and simplicity of the technique.

© 2023 Optica Publishing Group

Stimuli-responsive grating with a tunable period and a diffraction order

Li-Lan Tian, Le Yu, Yu-Meng Zeng, Yao Li, Zhou Guo, Lei Li, Yuxian Zhang, and Fan Chu
Opt. Lett. 48(21) 5551-5554 (2023)

Generalized phase diffraction gratings with tailored intensity

Jorge Albero, Ignacio Moreno, Jeffrey A. Davis, Don M. Cottrell, and David Sand
Opt. Lett. 37(20) 4227-4229 (2012)

Divide and focus: generating novel focal polarization modalities by symmetry-based phase tailoring in one dimension

Thomas Bauer and Ilya Golub
Opt. Lett. 48(10) 2736-2739 (2023)

Simulated wrapped phase optimizes phase retrieval in phase-shifting interferometry

Xindong Zhu, Liping Lian, Pengcheng Yang, Zehong Chang, Xiaoting Huang, Xian Wang, Zijian Yu, and Pei Zhang
Opt. Lett. 48(2) 211-214 (2023)

Polarization-filterless polarization-sensitive polarization-multiplexed phase-shifting incoherent digital holography (P⁴IDH)

Tatsuki Tahara
Opt. Lett. 48(15) 3881-3884 (2023)