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Room-temperature stimulated emission of excitons in ZnO/(Mg,Zn)O superlattices
Ohtomo A.1; Tamura K.1; Kawasaki M.1; Makino T.2; Segawa Y.2; Tang Z.K.3; Wong G.K.L.3; Matsumoto Y.1; Koinuma H.1
2000-10-02
Source PublicationApplied Physics Letters
ISSN00036951
Volume77Issue:14Pages:2204-2206
AbstractWe report on the observation of stimulated emission in ZnO/MgZnO superlattices well above room temperature. Two kinds of superlattices grown by laser molecular-beam epitaxy showed clear systematics on the quantum subband levels in absorption and spontaneous emission spectra. Stimulated emission with excitonic origin could be observed at very low optical pumping levels. The threshold excitation intensity changed from 11 to 40 kW/cm, and the emission energy could be tuned between 3.2 and 3.4 eV, depending on the well thickness and/or the Mg content in the barrier layers. The excitonic stimulated emission could be observed up to 373 K and the characteristic temperature was as high as 87 K. © 2000 American Institute of Physics.
DOI10.1063/1.1315340
URLView the original
Language英語
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Cited Times [WOS]:225   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Tokyo Institute of Technology
2.Riken
3.Hong Kong University of Science and Technology
Recommended Citation
GB/T 7714
Ohtomo A.,Tamura K.,Kawasaki M.,et al. Room-temperature stimulated emission of excitons in ZnO/(Mg,Zn)O superlattices[J]. Applied Physics Letters,2000,77(14):2204-2206.
APA Ohtomo A.,Tamura K.,Kawasaki M.,Makino T.,Segawa Y.,Tang Z.K.,Wong G.K.L.,Matsumoto Y.,&Koinuma H..(2000).Room-temperature stimulated emission of excitons in ZnO/(Mg,Zn)O superlattices.Applied Physics Letters,77(14),2204-2206.
MLA Ohtomo A.,et al."Room-temperature stimulated emission of excitons in ZnO/(Mg,Zn)O superlattices".Applied Physics Letters 77.14(2000):2204-2206.
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