"Óptica." . . "Infrarotstrahler." . . "Übergitter." . . . . . . . . . . . . . . . . . . . . . . . . "Infrared emitters based on quantum wells and superlattices" . . . "Long wavelength infrared emitters based on quantum wells and superlattices" . "Long wavelength infrared emitters based on quantum wells and superlattices"@en . . . . . . . "Quantum wells." . . "Superréseaux." . . . . "Sources de rayonnement infrarouge." . . "Quantenwell." . . "Infrared sources." . . "Puits quantiques." . . "Superlattices as materials." . .