An ultrafast laser generating device

Abstract

An ultrafast laser generating device that can generate multicolor annular concentric ultrafast lasers with different polarization states. The ultrafast lasers at different positions on the ring can have different polarization states, and the ring can be controlled. The distribution of the upper polarization state, such as vortex light that makes it form radial polarization distribution or angular polarization distribution, etc. The device can simultaneously generate multi-ring and multi-color ultrafast vortex lasers with special partial normal state at one time, and the wavelength can cover the entire light wave bands such as deep ultraviolet, ultraviolet, visible light, and mid-to-far infrared. Compact structure, economical and practical. The new wavelength laser generated has important application value in optical communication, optical tweezers, particle capture and migration, ion acceleration, microscopic imaging, biological imaging, semiconductor manufacturing such as lithography, etc.

Description

technical field [0001] The invention relates to the field of multicolor vortex ultrafast laser generation and application. It has important application value in optical communication, optical tweezers, particle capture and migration, ion acceleration, microscopic imaging, biological imaging, semiconductor manufacturing such as lithography, etc. [0002] technical background [0003] Ultrafast vortex lasers have important applications in the fields of physics, chemistry, biology and other sciences. Through cascaded nonlinear processes, such as cascaded four-wave mixing, multiple ultrafast laser spots with tunable center wavelength can be generated at one time, which has a good application prospect. However, most of the ultrafast polychromatic light produced by previous technologies are point spots arranged in a line or a two-dimensional array, and the polarization states of these spots are all the same, which limits this technology to a certain extent. The scope of use of th...

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Problems solved by technology

However, most of the ultrafast polychromatic light produced by previous technologies are point spots arranged in a line or a two-dimensional array, and the polarization states of these spots are all the same, which limits this technology to a certain extent. The scope of use of the light source

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