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Self-steering partially coherent beams.
Yahong Chen1,2, Sergey A Ponomarenko3, Yangjian Cai1,2
1College of physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.
Scientific Reports
|January 5, 2017
Summary
We introduce self-steering partially coherent beams, a new class of light beams whose guiding center moves in a straight line. This property allows for controlled beam steering, useful for applications like particle transport.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- Partially coherent beams are crucial in various optical applications.
- Controlling the spatial dynamics of light beams is an ongoing research area.
Purpose of the Study:
- To introduce a novel class of partially coherent beams with self-steering properties.
- To investigate the trajectory of the beam's guiding center in free space.
- To demonstrate experimental generation and potential applications of these beams.
Main Methods:
- Theoretical formulation of self-steering partially coherent beams.
- Analysis of guiding center trajectory based on linear momentum conservation.
- Experimental generation of self-steering Gaussian Schell beams.
Main Results:
- Self-steering partially coherent beams exhibit shape invariance.
- The guiding center follows a straight-line trajectory, controllable by engineering.
- Linear momentum conservation dictates this straight-line trajectory in free space.
Conclusions:
- The proposed self-steering partially coherent beams offer unique controllable beam dynamics.
- These beams have potential applications in mobile target tracing and micro/nanoparticle manipulation.
- The findings contribute to the fundamental understanding of light beam propagation.
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