Method for generating extreme ultraviolet coherent light source with approximate circular deflection

Abstract

The invention discloses a method for generating an extreme ultraviolet coherent light source with approximate circular deflection. The method comprises the following steps of (S1) enhancing linear polarization incident laser until the intensity level of the linear polarization incident laser reaches 1013-1014W/CM(2); (S2) performing interaction on the enhanced incident laser and diatomic gas molecules to generate a harmonic; adjusting an included angle between the polarization direction of the linear polarization incident laser and a molecular axis until a harmonic stage required for generation of the light source is acquired; and (S3) converting spectra of two harmonic components of which the energy intensities are equal to each other and the relative phases are 90 degrees in the harmonic stage into two attosecond pulses, and synthesizing the two attosecond pulses to obtain the extreme ultraviolet coherent light source with approximate circular deflection. A harmonic spectrum has two components in two different directions; the energy intensities of the components of the harmonic spectrum in the harmonic stage are equal to each other; and the relative phases are 90 degrees. By the method for generating the extreme ultraviolet coherent light source with approximate circular deflection, the generated extreme ultraviolet coherent light source with approximate circular deflection is high in harmonic efficiency and short in pulse width.

Description

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AI Technical Summary

Benefits of technology

The present in this technology uses linearly-polarized lasers that can produce high levels of harmonsies when combined with certain gases like helium or nitrogen atoms. This results in improved optical resolution during photography processes due to its ability to create specific types of waves called pseudoplasmon (pseudoharming) signals). By combining these waveforms together into one signal for better imaging quality, it becomes possible to capture more detailed images even under low ambient conditions such as nighttime without artificial illumination.

Problems solved by technology

This patents describes different ways to produce circularlypolarized (CP) ultrashort waves that may be useful in studying quantum mechanisms such as atomic interference between atoms. However, current techniques require expensive equipment like special opaque materials and complicated processes involving multiple steps.

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