Publications by authors named "Kaled Dechoum"
Article Synopsis
- - We explored how spin and orbital angular momentum can interact during a process called frequency upconversion, using special light beams known as structured light beams.
- - In our experiment, we combined a unique vector vortex beam with a circularly polarized Gaussian beam, resulting in a second harmonic beam that retains features from the vector vortex.
- - We observed a crosstalk effect where the polarization of the Gaussian beam influences the relative phases of the components, allowing for a transfer of angular momentum, and our findings closely align with theoretical predictions.
We analyze the critical quantum fluctuations in a coherently driven planar optical parametric oscillator. We show that the presence of transverse modes combined with quantum fluctuations changes the behavior of the "quantum image" critical point. This zero-temperature nonequilibrium quantum system has the same universality class as a finite-temperature magnetic Lifshitz transition.
View Article and Find Full Text PDF