Articles about Optics and Photonics, Lasers, Fiber Bragg gratings and FBG sensors

Totally new application of laser systems

on November 29, 2018

Today it is impossible to imagine our life without scientific technologies and, of course, without laser systems. The areas of scientific laser systems application continue to expand every day. The laser systems are used in laser cutting for engraving and marking a wide range of metallic materials. Also the fields of the use include gas and wind detection, oil and gas exploitation, pipeline integrity monitoring, perimeter security and medicine.

Laser_moduleLight is at the core of laser systems operation or, to be precisely, light particles that emit energy and finally form the laser beam. It turns out that every energy can be controlled purposefully in the form of laser beams.

Researchers from South Africa have found a way of the laser beam application for control and manipulation of micro objects, for example, single cells in a human body, minute particles in chemistry or future on-chip devices. They use the scientific technique – holographic optical trapping and tweezing to elicit the full force of the laser beam and even vector light that was impossible to do before. This creates the first vector holographic trap.

The application of optical tweezers or optical traps includes different fields such as biological studies to study DNA sequences, interactions of proteins, to trap single atoms, viruses, single-cell organisms, bacteria, carbon nanostructure, etc. Nowadays this discovery became the most promising success.

The researchers have demonstrated the first vector holographic trapping and tweezing laser system that allows to capture and manipulate micro sized particles, such as biological cells with light. Finally, the device will trap multiple tiny particles at once and move them around only with vector states of light.

The trapping and tweezing laser systems are based on the light that is focused into a small volume with small particles, for example, biological cells. Thus, the light forces are so significant that particles can be trapped by the light and controlled. If the light moves, the particles will move with it. Moreover,  the device operation is possible not only with the traditional laser beams or scalar beams, but even with more complex vector beams.

It should be mentioned that in optical tweezing laser systems ytterbium lasers are often used because they produce a stable and high-power laser beam for interference-free optical trapping. Other advantages of ytterbium lasers contain a simple electronic structure, a small quantum defect, a capacity for wide wavelength tuning, a low-noise beam.

Optromix is a ytterbium lasers manufacturer who uses only its own technologies based on the advanced research work and patents of international R&D team. Optromix ytterbium lasers can be used in optical tweezing with great efficiency. If you have any questions or would like to purchase a ytterbium laser, please contact us at info@optromix.com

 

editorTotally new application of laser systems

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