. . . . . . . "New laser materials for laser diode pumping report for the period January 1990 to December 1990"@en . . . . . . . . . . . . . . . . . "Semiconductor lasers." . . "Crystal growth." . . "Semiconductor diodes." . . "Laser pumping." . . "Neodymium lasers." . . "Solidstate lasers." . . "Laser materials." . .