NOVELTY - A microsphere comprises silicon with a diameter of 0.1-50 micras, preferably 0.5-5 micras, with controlled porosity and capable of functioning as an optical microcavities with Mie resonant modes for wavelengths of 1-15 micras where the silicon is transparent, is new.    USE - The microspheres and sponges photonic is useful for manufacturing photonic devices, for example, solar cells, photodiodes, lasers, and sensors (claimed).    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) sponge photonics concentration comprising clusters or random distributions of many units of the microsphere above, on either a single or different materials, in a stack, the type of layer or laminate surfaces flat or curved in any form; and    (2) a procedure for production of microspheres and sponge as photonics comprises: (i) phase selection and arrangement of the material, size and shape of the bulb or container (2) of the reaction, as well as material, shape and location of the substrate (5) inside the same mount for phase chemical vapor deposition, gas; (ii) stage of decomposition by heating of the composite/s silicon precursor/s, preferably silane and/or disilane, in the form of gas that is fed into the reactor/ampoule where they are subject to the conditions of pressure, temperature and time of appropriate decomposition; (iii) stage of synthesis of the invention based microsphere in the phase chemical vapor deposition, which was broadcast on the gas, forming nuclei of the material, silicon preferably, within the gas; (iv) precipitation tank microspheres in the form of rain and its deposition on the substrate introduced into the container or on the sides of the same; (v) formation of the photonic sponges; (vi) extraction of gas left over from container or ampoule (2) through a mounting phase chemical vapor deposition; (vii) opening the container or ampoule (b) and removal of the substrate (d) and photonic microspheres and sponges attached to the container and the substrate for subsequent purification.