On-demand vector holographic optical tweezers

Nkosiphile Bhebhe; Peter A. C. Williams; Carmelo Rosales-Guzmán; Valeria Rodríguez-Fajardo; Andrew Forbes

doi:10.1117/12.2528709

9 September 2019 On-demand vector holographic optical tweezers

Nkosiphile Bhebhe, Peter A. C. Williams, Carmelo Rosales-Guzmán, Valeria Rodríguez-Fajardo, Andrew Forbes

Proceedings Volume 11083, Optical Trapping and Optical Micromanipulation XVI; 1108307 (2019) https://doi.org/10.1117/12.2528709
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

The invention of holographic optical tweezers (HOTs) revolutionized the field of optical tweezers by allowing the simultaneous manipulation of many particles using arrays of scalar beams. Here, we go one step further and produce arrays of digitally controlled Higher-Order Poincaré Sphere (HOPs) beams employing a simple set-up using a spatial light modulator (SLM). Our system enables the on-demand manipulation of each beam in the array to obtain any HOPs state. We demonstrated trapping and tweezing with customized arrays of HOPs beams comprising scalar and cylindrical vector beams simultaneously in the same array. Our approach is general enough to be easily extended to arbitrary vector beams, could be implemented with fast refresh rates, and will be of interest to the structured light and optical manipulation communities alike.

Conference Presentation

Citation Download Citation

Nkosiphile Bhebhe, Peter A. C. Williams, Carmelo Rosales-Guzmán, Valeria Rodríguez-Fajardo, and Andrew Forbes "On-demand vector holographic optical tweezers", Proc. SPIE 11083, Optical Trapping and Optical Micromanipulation XVI, 1108307 (9 September 2019); https://doi.org/10.1117/12.2528709

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