In this work, we design and implement a new bifocal diffractive spiral lens within an optical tweezers system. The proposed diffractive optical element coined Kolokaski Kinoform Spiral Lens (KKSL), ...
Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase singularities. While they have been widely studied in recent decades, two ...
A new Doctoral Network coordinated by Tampere University has secured €4.4 million in funding from the European Union’s Marie Skłodowska-Curie Actions (MSCA) programme. The High-Power Optical Vortices ...
"We have demonstrated that by using optical vortex beams—light beams that carry angular momentum —we can precisely control how an electron is ejected from an atom," explains Professor Bhardwaj. "This ...
Single-packet spatiotemporal optical vortices (STOVs) with transverse orbital angular momentum (OAM) have recently garnered significant attentions. Nevertheless, more advanced applications require ...
As a new degree of freedom, the orbital angular momentum of electromagnetic waves exceeds the traditional frequency, phase, and amplitude, and is expected to promote the infinite expansion of channel ...
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