Opto-thermoelectric speckle tweezers

Speckle optical tweezers: micromanipulation with random light fields.

Current optical manipulation techniques rely on carefully engineered setups and samples. Although similar conditions are routinely met in research laboratories, it is still a challenge to manipulate microparticles when the environment is not well controlled and known a priori, since optical imperfections and scattering limit the applicability of this technique to real-life situations, such as i...

Optoacoustic tweezers: a programmable, localized cell concentrator based on opto-thermally generated, acoustically activated, surface bubbles.

We present a programmable, biocompatible technique for dynamically concentrating and patterning particles and cells in a microfluidic device. Since our technique utilizes opto-thermally generated, acoustically activated, surface bubbles, we name it "optoacoustic tweezers". The optoacoustic tweezers are capable of concentrating particles/cells at any prescribed locations in a microfluidic chambe...

Optoelectronic tweezers

Optoelectronic tweezers is a new technique to trap and manipulate particles with sizes ranging from tens of nanometers to hundreds of micrometers. Using optically-controlled dielectrophoretic force on a photoconductive electrode, optoelectronic tweezers enables complex, dynamic manipulation functions using light intensities up to 100,000 times lower than that of conventional laser tweezers. © 2...

Opto - Electronic Packaging

Holographic opto-fluidic microscopy

Over the last decade microfluidics has created a versatile platform that has significantly advanced the ways in which micro-scale organisms and objects are controlled, processed and investigated, by improving the cost, compactness and throughput aspects of analysis. Microfluidics has also expanded into optics to create reconfigurable and flexible optical devices such as reconfigurable lenses, l...