Diode-pumped mode-locked Yb:YScO laser.

To the best of our knowledge, we report on the mode-locking of the mixed sesquioxide single crystal Yb:YScO for the first time. The spectra of Yb ions in this crystal were studied at both room temperature and low temperature. A continuous-wave laser output at 1080 nm was achieved using a fiber-coupled semiconductor laser, with a pump wavelength of 976 nm, in the Yb:YScO crystal, yielding a maximum output power of 7.

Preparation and Properties Improvement of Decynediol-Ethoxylate-Modified Trisiloxane Surfactant.

Silicone surfactants are increasingly used in the industrial field due to their advantages such as low surface energy, stable performance, and good biocompatibility. However, many polyether-modified silicone surfactants' foam stability and easy hydrolysis in non-neutral aqueous systems limit their application in many fields. In this article, the decynediol-ethoxylate chain segment was grafted onto heptamethyltrisiloxane to synthesize a modified trisiloxane surfactant (G2).

Spectroscopy and Kerr-lens mode-locked operation of Yb:GdScO crystal.

A Kerr-lens mode-locked laser based on a Yb-doped disordered gadolinium scandate (Yb:GdScO) crystal is reported for the first time, to the best of our knowledge. The crystal with the perovskite structure was grown using the Czochralski method, and its room temperature (RT) and low temperature (LT) spectra were also investigated. Due to the crystal's multisite structure (Gd/Sc site), Yb:GdScO offers broad and intense polarized emission spectra in the near-infrared range (975-1075 nm).