Honghao Zhang

TL;DR: To the best of the knowledge, this is the first demonstration of gradual improvement of parallel laser processing with in-process optimization of the CGH and it was also demonstrated that the performance of the laser processing system against unexpected disturbances was improved.

TL;DR: In this article, a femtosecond laser parallel processing method based on the fractional Fourier transform is proposed, which increases the flexibility of the processing position of the parallel beam as well as the available space in the paraxial area.

TL;DR: In this paper, the authors demonstrate feedback control of three-dimensional (3D) parallel focusing for automatic compensation of imperfections in an optical system and long-term stability of parallel focusing, realized by a computer-generated hologram (CGH) displayed on a spatial light modulator (SLM), and an iterative calculation based on the observation of the 3D focusing intensities with an image sensor on a programmable linear stage.

TL;DR: In this paper , a 3D holographic femtosecond laser parallel processing method with the fractional Fourier transform (FFT) was proposed for arbitrary microstructures inside glass materials.

TL;DR: In this paper, the authors proposed a holographic laser processing system with the combination of femtosecond laser and the in-system optimization, which achieved uniform peaks of 0.96, when the maximum intensity at the peaks of the diffraction spots was normalized to 1.0.