Three-dimensional holographic optical tweezers implemented on spatial light modulator

Enrico Ferrari; Dan Cojoc; Valentina Emiliani; Valeria Garbin; Maïté Coppey-Moisan; Enzo Di Fabrizio

doi:10.1117/12.639172

14 December 2005 Three-dimensional holographic optical tweezers implemented on spatial light modulator

Enrico Ferrari, Dan Cojoc, Valentina Emiliani, Valeria Garbin, Maïté Coppey-Moisan, Enzo Di Fabrizio

Proceedings Volume 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II; 597203 (2005) https://doi.org/10.1117/12.639172
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 2004, Bucharest, Romania

Abstract

We have developed a holographic optical tweezers system based on diffractive optical elements (DOES) implemented on a liquid crystal spatial light modulator (LC-SLM) able to generate fine positioned traps on the sample. Our own algorithms and code allows to calculate phase DOES that can transform a single laser beam into an array of independent traps, each with individually specified characteristics, arranged in arbitrary three-dimensional (3D) geometrical configurations. Different DOEs can be dynamically projected to the SLM in order to achieve a rearrangement of the configuration of the trapping spots. Silica or latex micro-beads are trapped in different configurations of spots to demonstrate the fine control capability on each trap. Our setup is built on a standard video microscope coupled with a laser source, a spatial light modulator and a three axis nano-positioning system. It allows to obtain 3D multi-trapping and a fine calibration for the positioning of the traps.

Citation Download Citation

Enrico Ferrari, Dan Cojoc, Valentina Emiliani, Valeria Garbin, Maïté Coppey-Moisan, and Enzo Di Fabrizio "Three-dimensional holographic optical tweezers implemented on spatial light modulator", Proc. SPIE 5972, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies II, 597203 (14 December 2005); https://doi.org/10.1117/12.639172

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available