Bo Zhou

TL;DR: The latest progress of the emerging 2D materials beyond graphene for passively mode-locked fiber laser application is reviewed, classified into mono-elemental, dual- elemental and multi-elementals 2D material.

TL;DR: In this article, an energy-migratory ytterbium sublattice in an erbium-sensitized multilayer core-shell nanostructure was proposed to achieve photon upconversion from a broad range of lanthanide ions (Yb3+, Tm3+, Ho3+, Gd3+, Eu3+ and Tb3+) under 1,530 nm irradiation.

TL;DR: In this article, the basic requirements for the rare-earth (RE) ions and host matrix material for obtaining efficient NIR-MIR laser output, a review of the background of processing fundamentals on the fabrication and characterization for newly developed soft optical glass fibers, an outline of the key issues of platinum removal and the dehydration technique, effective doping of RE, and low splicing loss together with the recent theoretical and experimental results.

TL;DR: These findings open a door for the fundamental understanding of the luminescence dynamics involving lanthanides at nanoscale, which would further help conceive new scientific concepts and control photon upconversion at a single lanthanide ion level.

TL;DR: It is found that the cooperative energy transfer upconversion followed by cross-relaxation occurring among Er3+ ions plays a critical role in producing and enhancing the red upconversions for the samples with high dopant concentrations.