Yes, does destructive interference happen when focusing a radially polarized beam?anorlunda said:
Are you asking about constructive / destructive interference?
It's already been measured:Pakano said:
A radially polarized beam is a type of laser beam in which the electric field is oriented in a radial pattern, meaning it radiates outwards from the center of the beam. This is in contrast to a linearly polarized beam, where the electric field is oriented in a straight line.
A radially polarized beam is typically created by using specialized optics, such as a spiral phase plate or a specially designed laser cavity, to manipulate the polarization of the laser beam. This allows for the electric field to be oriented in a radial pattern, resulting in a radially polarized beam.
One of the main advantages of using a radially polarized beam is its ability to achieve a higher degree of focus compared to other types of laser beams. This is due to the fact that the electric field is concentrated at the center of the beam, resulting in a smaller focal spot size. Additionally, radially polarized beams have been shown to have improved cutting and drilling capabilities in materials processing applications.
Extreme focus of a radially polarized beam refers to the ability of the beam to achieve a much smaller focal spot size compared to regular focus. This is due to the concentrated electric field at the center of the beam, allowing for tighter focusing and higher precision in applications such as microscopy and nanofabrication.
Extreme focus of a radially polarized beam has a wide range of potential applications, including high-resolution microscopy, nanofabrication, and optical trapping. It can also be used in medical applications such as laser surgery and cancer treatment, as well as in telecommunications for high-speed data transmission.