"US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . . . "81" . . "RIV/68378271:_____/02:02020175!RIV/2003/AV0/A02003/N" . "3"^^ . "0"^^ . "RIV/68378271:_____/02:02020175" . "Waveguiding effects in the measurement of optical gain in a layer of Si nanocrystals."@en . "Waveguiding effects in the measurement of optical gain in a layer of Si nanocrystals."@en . "0"^^ . . . "1"^^ . "[721344B46CD4]" . . . "1396;1398" . "Si nanocrystals; optical gain"@en . "Applied Physics Letters" . "3"^^ . "8" . "Waveguiding effects in the measurement of optical gain in a layer of Si nanocrystals." . "670674" . "We discuss applicability of the variable stripe legth method to experimental investigation of optical gain in a luminescent layer that behaves like a planar waveguide. We show that an interplay between the output direction of guided light modes and the numerical aperture of the collection optics may lead to an artifact manifesting itself as an apperent but fals gain."@en . "Valenta, J." . . . . . "We discuss applicability of the variable stripe legth method to experimental investigation of optical gain in a luminescent layer that behaves like a planar waveguide. We show that an interplay between the output direction of guided light modes and the numerical aperture of the collection optics may lead to an artifact manifesting itself as an apperent but fals gain." . "0003-6951" . . . "Pelant, Ivan" . . . "P(IAA1010809), Z(AV0Z1010914)" . "Waveguiding effects in the measurement of optical gain in a layer of Si nanocrystals." . "Linnros, J." .