METHOD FOR CHANGING REFRACTION COEFFICIENT IN CHALCOGENIDE GLASS AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2005 - IPC

FIELD: optics, electronics.

SUBSTANCE: method is realized by optical excitation by light radiation of carriers, which are excited by light radiation with energy of light particles, lesser than width of forbidden zone, while two-stepped system is used for exciting admixture ion Er, inserted in homogenous optical environment, through intermediate resonance state of admixture ion. Device enables monochromatic radiation source by light particles energy, lesser than width of forbidden zone. Ions of rare earth element are inserted in homogenous optical environment, while energy of optical light particles is picked resonance-matching energies of two serial inside-center transfers of rare earth element ion, and their total energy is selected to surpass width of forbidden zone.

EFFECT: lower energy costs, higher stability.

2 cl, 1 dwg