Nanosecond Laser “Pulling” Patterning of Micro–Nano Structures on Zr‐Based Metallic Glass

Abstract

machining process. [19,20] Therefore, alternative processing technologies have been developed to fabricate micro-nano structures on MG surfaces. For example, using the magnetron sputtering method, [21] nanoparticles were introduced on an Au-based MG surface. Based on nanoimprinting technology, [22] stripe patterns were introduced on an FeCo-based MG surface. Via thermoplastic forming, [23] nanopillars were prepared on a Pt-based MG surface.Although the above-mentioned methods can be used to fabricate micronano structures on MG surfaces, the processing efficiency and flexibility are far from satisfactory. Alternatively, owing to its advantages of no contact and high

Low Threshold and Robust Ultrafast Pulses from Freestanding‐Growth 2D Quaternary BiCuSeO

“…Ultrafast fiber lasers, as solid‐state bulk lasers alternatives, have found wide applications in micromachining, biomedicine, ultrafast physics, multiphoton microscopy, and spectroscopy. [ 1–11 ] Saturable absorber is a crucial component to achieve robust mode‐locked operation in ultrafast pulsed laser. Semiconductor saturable absorber mirrors (SESAMs) are efficient and commonly used saturable absorbers in various laser systems, initially introduced by Keller in 1991.…”