4D imaging using accelerating airy beams and nonlinear reconstruction

Andrei Bleahu; Shivasubramanian Gopinath; Ravi Kumar; Francis Gracy Arokiaraj; Daniel Smith; Tauno Kahro; P. A. Praveen; Soon Hock Ng; Agnes Pristy; Tomas Katkus; Aravind Simon John Francis Rajeswary; Kaupo Kukli; Aile Tamm; Saulius Juodkazis; Joseph Rosen; Vijayakumar Anand

doi:10.1117/12.2649853

8 March 2023 4D imaging using accelerating airy beams and nonlinear reconstruction

Andrei Bleahu, Shivasubramanian Gopinath, Ravi Kumar, Francis Gracy Arokiaraj, Daniel Smith, Tauno Kahro, P. A. Praveen, Soon Hock Ng, Agnes Pristy, Tomas Katkus, Aravind Simon John Francis Rajeswary, Kaupo Kukli, Aile Tamm, Saulius Juodkazis, Joseph Rosen, Vijayakumar Anand

Author Affiliations +

Proceedings Volume 12445, Practical Holography XXXVII: Displays, Materials, and Applications; 124450Z (2023) https://doi.org/10.1117/12.2649853
Event: SPIE OPTO, 2023, San Francisco, California, United States

Conference Poster

Abstract

A 4D computational incoherent imaging technique using accelerating Airy beams (A²-beams) and nonlinear reconstruction (NLR) has been developed. The phase mask was designed as a binary version for the generation of a sparse random array of A²-beams. The imaging process consist of three steps. In the first step a 4D point spread function (PSF) was recorded at different wavelengths and depths. In the next step, a multicolor, multiplane object was loaded and a single camera shot was recorded. Finally, the 4D information of the object was reconstructed by processing the object intensity distribution and 4D PSFs. The simulation results for the imaging concept are presented.

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Andrei Bleahu, Shivasubramanian Gopinath, Ravi Kumar, Francis Gracy Arokiaraj, Daniel Smith, Tauno Kahro, P. A. Praveen, Soon Hock Ng, Agnes Pristy, Tomas Katkus, Aravind Simon John Francis Rajeswary, Kaupo Kukli, Aile Tamm, Saulius Juodkazis, Joseph Rosen, and Vijayakumar Anand "4D imaging using accelerating airy beams and nonlinear reconstruction", Proc. SPIE 12445, Practical Holography XXXVII: Displays, Materials, and Applications, 124450Z (8 March 2023); https://doi.org/10.1117/12.2649853

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