3D polarization structuring strategy and its application to transparent materials

What is it about?

For the first time, a stable “helical polarization distribution” Bessel beam was generated by using a fs laser structured glass plate. Besides, such a z-variable-polarized laser beam was implemented for laser materials processing namely to imprint "twisted silica glass".

Featured Image

Photo by Alex Kreep on Unsplash

Photo by Alex Kreep on Unsplash

Why is it important?

We proposed a novel concept to extend the polarization manipulation along the optical path, which provides new perspectives in polarization transformation and therefore, enriches the state of the art of light manipulation. As a demonstration, this structured light beam was exploited to imprint chiral optical properties in a glass.

Perspectives

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This 3D polarization structuring approach will benefit the fundamental understanding of light-matter interaction and will provide ultrafast light manipulation with additional degrees of freedom. For example, this could provide a platform for laser-based production of cholesteric liquid crystal analogous optical devices using tiny lengths of inorganic glass i.e., "twisted silica glass".

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