To assess the effects of shading by epiphytes on the carbon balance of the seagrass Posidonia oceanica, we examined the patterns of within-shoot epiphyte abundance on leaves, and their variability with season and depth. Epiphyte biomass was found to depend on leaf age (larger epiphyte load on older tissues), leaf side (more epiphytes on the inner face than on the outer) and depth (more epiphyte...

CO2 conversion In article number 2100185, Yimin Xuan and co-workers introduced NiCo alloys derived from AlMg hydrotalcite for photothermal synergetic with CH4 ultrahigh light-to-fuel efficiency of 33.8% low carbon deposition rate. The is attributed to the high solar absorptance alloys, unique synergistic catalysis active sites, photo-enhanced reactant activation.

A measurement of the angular and polarisation dependence of the reflectance of an EM1 9124B KaCsSb bialkali photocathode, with the photomultiplier immersed in water, has allowed an unambiguous determination of the KzCsSb complex refractive index (2.7 f 0.1 + i( 1.5 f 0.1) at 442 nm wavelength) and thickness (23 f 2 nm) The wavelength dependence of the refractive index has been obtained from a m...

An in-well pumped InGaAs disk laser emitting at 984 nm is presented. The device is designed to eliminate major loss mechanisms attributed to heat generation in semiconductor disk lasers. An output power of close to 7W at room temperature is achieved by optical excitation with a fiber-coupled 940 nm diode laser. Strong cooling or the use of heat spreaders with high thermal conductivity is not ne...

Black silicon (BSi) is a synthetic nanomaterial with high aspect ratio nano protrusions inducing several interesting properties such as very large absorptivity of incident radiation. We have recently shown that heavily doping the BSi in volume enables to significantly enhance its mid infrared and tune spectral range interest up 20 micrometer. In present letter, we explore effect surface on radi...