Papers - USAMI Noritaka
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Interfacial roughness of Si1-xGex/Si multilayer structures on Si(111) probed by x-ray scattering
P. M. Reimer, J. H. Li, Y. Yamaguchi, O. Sakata, H. Hashizume, N. Usami and Y. Shiraki
Journal of Physics-Condensed Matter Vol. 9 ( 22 ) page： 4521-4533 1997.6
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Precise control of island formation using overgrowth technique on cleaved edges of strained multiple quantum wells
J. Arai, N. Usami, K. Ota, Y. Shiraki, A. Ohga and T. Hattori
Applied Physics Letters Vol. 70 ( 22 ) page： 2981-2983 1997.6
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Photoluminescence study of the optical properties of SiGe quantum wells on separation by implanted oxygen substrates
D. K. Nayak, N. Usami, S. Fukatsu and Y. Shiraki
Journal of Applied Physics Vol. 81 ( 8 ) page： 3484-3489 1997.4
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Anomalous luminescence peak shift of SiGe/Si quantum well induced by self-assembled Ge islands
E. S. Kim, N. Usami and Y. Shiraki
Applied Physics Letters Vol. 70 ( 3 ) page： 295-297 1997.1
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Oxidation of strained Si in a microwave electron cyclotron resonance plasma
L. K. Bera, M. Mukhopadhyay, S. K. Ray, D. K. Nayak, N. Usami, Y. Shiraki and C. K. Maiti
Applied Physics Letters Vol. 70 ( 2 ) page： 217-219 1997.1
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Electrical properties of oxides grown on strained Si using microwave N2O plasma
L. K. Bera, S. K. Ray, D. K. Nayak, N. Usami, Y. Shiraki and C. K. Maiti
Applied Physics Letters Vol. 70 ( 1 ) page： 66-68 1997.1
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Anomalous photoluminescence of pure-Ge/Si type-II coupled quantum wells (II-CQWs)
H. Sunamura, N. Usami, Y. Shiraki and S. Fukatsu
THIN SOLID FILMS Vol. 294 ( 1-2 ) page： 336-339 1997
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Luminescence study on Ge islands as stressors on Si1-xGex/Si quantum well
E. S. Kim, N. Usami, H. Sunamura, S. Fukatsu and Y. Shiraki
JOURNAL OF CRYSTAL GROWTH Vol. 175 page： 519-523 1997
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Time-resolved photoluminescence study on AlxGa1-xAs spontaneous vertical quantum well structures
N. Usami, W. G. Pan, H. Yaguchi, R. Ito, K. Onabe, H. Akiyama and Y. Shiraki
Applied Physics Letters Vol. 68 ( 23 ) page： 3221-3223 1996.6
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Ultrashort lifetime photocarriers in Ge thin films
N. Sekine, K. Hirakawa, F. Sogawa, Y. Arakawa, N. Usami, Y. Shiraki and T. Katoda
Applied Physics Letters Vol. 68 ( 24 ) page： 3419-3421 1996.6
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Role of heterointerface on enhancement of no-phonon luminescence in Si-based neighboring confinement structure
N. Usami, Y. Shiraki and S. Fukatsu
Applied Physics Letters Vol. 68 ( 17 ) page： 2340-2342 1996.4
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Observation of lateral confinement effect in Ge quantum wires self-aligned at step edges on Si(100)
H. Sunamura, N. Usami, Y. Shiraki and S. Fukatsu
Applied Physics Letters Vol. 68 ( 13 ) page： 1847-1849 1996.3
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Exciton diffusion dynamics in SiGe/Si quantum wells on a V-groove patterned Si substrate
N. Usami, H. Akiyama, Y. Shiraki and S. Fukatsu
SOLID-STATE ELECTRONICS Vol. 40 page： 733-736 1996
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Formation and optical properties of SiGe/Si quantum structures
Y. Shiraki, H. Sunamura, N. Usami and S. Fukatsu
APPLIED SURFACE SCIENCE Vol. 102 page： 263-271 1996
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Rectangular AlGaAs/AlAs quantum wires using spontaneous vertical quantum wells
W. G. Pan, H. Yaguchi, K. Onabe, R. Ito, N. Usami and Y. Shiraki
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS Vol. 35 ( 2B ) page： 1214-1216 1996
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Polarization properties of GaAsP/AlGaAs tensilely strained quantum wire structures grown on V-grooved GaAs substrates
W. Pan, H. Yaguchi, K. Onabe, R. Ito, N. Usami and Y. Shiraki
INSTITUTE OF PHYSICS CONFERENCE SERIES Vol. 145 page： 925-930 1996
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Improved luminescence quality with an asymmetric confinement potential in Si-based type-II quantum wells grown on a graded SiGe relaxed buffer
S. Fukatsu, N. Usami and Y. Shiraki
J. Vac. Sci. Technol Vol. 14 page： 2387-2390 1996
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CHARACTERIZATION OF SIGE QUANTUM-WIRE STRUCTURES BY CATHODOLUMINESCENCE IMAGING AND SPECTROSCOPY
V. Higgs, E. C. Lightowlers, N. Usami, T. Mine, S. Fukatsu and Y. Shiraki
Applied Physics Letters Vol. 67 ( 12 ) page： 1709-1711 1995.9
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DYNAMICS OF EXCITON DIFFUSION IN SIGE QUANTUM-WELLS ON A V-GROOVE PATTERNED SI SUBSTRATE
N. Usami, H. Akiyama, Y. Shiraki and S. Fukatsu
Physical Review B Vol. 52 ( 7 ) page： 5132-5135 1995.8
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ENHANCEMENT OF RADIATIVE RECOMBINATION IN SI-BASED QUANTUM-WELLS WITH NEIGHBORING CONFINEMENT STRUCTURE
N. Usami, F. Issiki, D. K. Nayak, Y. Shiraki and S. Fukatsu
Applied Physics Letters Vol. 67 page： 524-526 1995.7