A new iterative Fourier transform algorithm for optimal design in holographic optical tweezers

P. Memmolo; L. Miccio; F. Merola; P. Ferraro; P. A. Netti

doi:10.1117/12.922927

4 May 2012 A new iterative Fourier transform algorithm for optimal design in holographic optical tweezers

P. Memmolo, L. Miccio, F. Merola, P. Ferraro, P. A. Netti

Proceedings Volume 8429, Optical Modelling and Design II; 84291F (2012) https://doi.org/10.1117/12.922927
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We propose a new Iterative Fourier Transform Algorithm (IFTA) capable to suppress ghost traps and noise in Holographic Optical Tweezers (HOT), maintaining a high diffraction efficiency in a computational time comparable with the others iterative algorithms. The process consists in the planning of the suitable ideal target of optical tweezers as input of classical IFTA and we show we are able to design up to 4 real traps, in the field of view imaged by the microscope objective, using an IFTA built on fictitious phasors, located in strategic positions in the Fourier plane. The effectiveness of the proposed algorithm is evaluated both for numerical and optical reconstructions and compared with the other techniques known in literature.

Citation Download Citation

P. Memmolo, L. Miccio, F. Merola, P. Ferraro, and P. A. Netti "A new iterative Fourier transform algorithm for optimal design in holographic optical tweezers", Proc. SPIE 8429, Optical Modelling and Design II, 84291F (4 May 2012); https://doi.org/10.1117/12.922927

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