Three-dimensional laser trapping on the base of binary radial diffractive optical element

Abstract

A radially symmetric binary diffractive optical element to generate an optical bottle beam is designed, fabricated, and characterized. Analysis of the numerical simulation and experimental research results shows that the fabricated element is well suited for solving three-dimensional (3D) laser trapping problems.

Keywords:

• diffractive optical element
• optical micromanipulation
• optical bottle beam
• phase function
• ion chemical etching

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Ministry of Education and Science of the Russian Federation (project 1879).