2 results about "Arsenide" patented technology

This application belongs to the field of saturable absorber technology, and particularly relates to a saturable absorber based on tantalum arsenide quantum dots, its preparation method, and a mode-locked fiber laser. The saturable absorber provided by this application includes a tapered optical fiber and tantalum arsenide quantum dots loaded thereon. The tantalum arsenide quantum dots have excellent nonlinear optical properties and saturation intensity, so when the laser passes through the tantalum arsenide quantum dots on the saturable absorber, the laser reaches saturation quickly, enabling the output of ultrafast laser with a repetition frequency and stable laser mode-locked signal, thereby solving the technical problem of low performance of saturable absorbers based on two-dimensional materials in the prior art.

A method of extracting a metal of interest comprises dissolving an oxidizable metal compound in an electrolyte contained in an electrochemical cell; dissolving a sulfoarsenide compound comprising the metal of interest in the electrolyte; applying a current between an anode and a cathode of the electrochemical cell to produce an electrochemical product solution comprising soluble metal ions of the oxidizable metal compound, soluble metal ions of the metal of interest, and a soluble arsenic acid; reacting the soluble arsenic acid with the metal ions of the oxidizable metal compound to form an insoluble arsenate compound comprising the metal of the oxidizable metal compound; and separating the soluble metal ions of the metal of interest from the insoluble arsenate compound. Also disclosed is a method of extracting a metal of interest from a metal containing feed stream, and a method of isolating cobalt from a metal containing feed stream.