The Interaction Between Light Particles Based on Different Optical Properties

Light can have many different forms, even in our daily life, sunlight and fluorescent light generated is also very different. In physics, when studying the interaction between light and tiny particles, the shape of the 30000mw laser pointer will be very different situations. Collaborators from Okinawa Institute of Technology Graduate School (OIST) researchers and the University of Innsbruck in Austria found that the interaction between the trapped light particles distributed along the optical fiber, as well as the particle velocity is based on the different optical properties of. The results recently published in the "Science Report".

Tiny light distribution in the optical fiber is an A method for operating fine particles used in various applications, not only in the physical world, but also has applications in biology. There are two ways of light and optical fiber applications: work in basic mode and advanced mode. The basic pattern is the basic shape of the 20000mw laser pen, wherein the energy beam is the strongest in the middle and at the edges of the light will subside. If just any other shape, which can be classified as a high-order mode, which can be created by a particular type of irradiated crystals.

Okinawa Institute of Technology Graduate School research team has found that the case of higher-order modes and movement of individual particles trapped more rapidly than the basic model. This time, when they deal with more than one particle in the basic or higher-order modes, and more changes observed differences between the particles and the speed of interaction between carefully. When there is a plurality of particles trapped in the10000mw blue laser of the optical fiber around, they will be arranged over into a particular order, which is called the optical effect.

In order to explore the interaction of these particles, the researchers ran clamp captured five particles. Then they move into the optical micro-fiber particles released into the optical fiber and the surrounding light field. The team measured the movement of particles along an optical fiber moving speed."We measured the basic and higher 2000mw green laser order modes," AiliMaimaiti Okinawa Institute of Graduate Studies and especially the first author said. "We found that high-order mode for particles with different effects. In order mode, when adding more particles, the particles will slow down the speed of the collective, but the effect in the case of the basic model is the opposite.

In their movement, they also calculated the distance between the plurality of particles. They were each calculation, every time they add a particle, up to a maximum of five particles. The team found that those particles away from the laser 5000mw source has a smaller space, the distance between the particles, when you are getting closer to the light source, the space will be greater. When they looked at the difference between the basic and higher order modes, they found among the higher-order modes, distance becomes smaller."This proves that the effect of restraint in the high-order mode are different," Maimaiti said.

The researchers developed a theoretical model, supported by experimental results. The model explains that particles as reflectors, reflection and transmission of light, they are trapped in them, which will lead to their interactions.They stressed the importance of understanding the interaction of these laser 3000mw particles trapped in between. These physical phenomena, such as the behavior of particles higher order mode, not only can better control the position of the particle, but others may be in for a one-dimensional crystal structure, quantum effects at the atomic chain is useful.

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