We present a study of the actuality of acousto-optics devices capable to withstand high-power laser emission. Some applications and specifics were considered, and the first assessment of parameters of the devices on KGd(WO4)2 single crystal was made. New acousto-optics modulator on that crystalline material for non-polarized high-power light radiation was developed, tested and shown almost 100%...

The gain of KGd0.447Lu0.078Yb0.475(WO4)2 waveguide optical amplifiers in the wavelength range from 980 nm to 1023 nm is reported. Values above 150 dB/cm were obtained with peak gain of 935 dB/cm at 981 nm. Keywordsdouble tungstate; optical amplifier; rare-earth ions; integrated optics

A nanodiamond with a mean particle size of 4 nm, which was prepared by the detonation of a nanodiamond, has been characterized and used as a collector for tungstate in water samples. An aqueous solution of nanodiamond was found to be stable over the pH range from 3 to 10. Coagulation of the nanodiamond could be brought about by adding an electrolyte solution. The adsorption characteristics of n...

The evolution of new catalytic activities and specificities within an enzyme superfamily requires the exploration of sequence space for adaptation to a new substrate with retention of those elements required to stabilize key intermediates/transition states. Here, we propose that core residues in the large enzyme family, the haloalkanoic acid dehalogenase enzyme superfamily (HADSF) form a "mold"...