Visible lasers are sought for in a variety of applications. They are required in fields as
diverse as medicine, materials processing, display and entertainment technology and many …

Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …

Mode-locked fibre lasers (MLFLs) are fundamental building blocks of many photonic
systems used in industrial, scientific and biomedical applications. To date, 1–2 μm MLFLs …

Ti 3 CN, as a typical hetero-MXene, has attracted tremendous attention for its unique
properties. However, its ultrafast photonics applications are still rare. Here, the few-layer Ti 3 …

Pulsed solid‐state lasers comprise 2D materials as saturable absorbers that contain
transparent windows of the atmosphere and characteristic fingerprint spectra of several vital …

The generation of optical vortex beams with user-configurable topological charge and
spatial profile is a topic of intense research due to the numerous potential applications for …

We demonstrate the direct generation of visible vortex beams (LG_01 mode) from a
doughnut-shaped diode-pumped Pr: YLF laser. In continuous-wave mode, the maximum …

In this paper, a passively Q-switched Tm: YAP laser with a SnS 2 saturable absorber (SA)
fabricated by the liquid-phase exfoliation method was demonstrated for the first time. The …

Optical thermometry is a non-contact temperature detective technique that has high
sensitivity and rapid response. In present work, we developed LiYF 4: 20Yb 3+, 1Ho …

In this work, we systematically study the spectroscopic properties of Tb3+/Dy3+ co‐doped
phosphate glasses in the visible spectral region and explore the sensitization role of Dy3+ in …