Oscillation Circular Polarization (IMAGE)
Caption
The polarization describes a light wave's oscillation direction. Linear polarization (red, blue): the vector describing the light wave's electric field oscillates in a fixed plane. Circular polarization can be described by a superposition of two linear perpendicularly polarized light waves. The electric field vector rotates around the propagation direction. If the frequencies of the overlapping fields are different, oscillating circular polarization is the result (black). The circular polarization degree (green) is modulated depending on the frequency difference. T is the cycle duration of this modulation.
Credit
RUB, Chair of Photonics and Terahertz Technology
Usage Restrictions
This image may only be used for reporting about the Ruhr-Universitaet Bochum in the context of the press release "Spin lasers facilitate rapid data transfer" published in April 2019.
License
Licensed content