@article{CTT100609389, author = {A. Tsukazaki and A. Ohtomo and M. Kawasaki and T. Makino and C. H. Chia and Y. Segawa and H. Koinuma}, title = {Emission from the higher-order excitons in ZnO films grown by laser molecular-beam epitaxy}, journal = {Applied Physics Letters}, year = 2004, } @article{CTT100608787, author = {T. Makino and A. Ohtomo and C. H. Chia and Y. Segawa and H. Koinuma and M. Kawasaki}, title = {Internal electric field effect on luminescence properties of ZnO/(Mg,Zn)O quantum wells}, journal = {Physica E-Low-Dimensional Systems & Nanostructures}, year = 2004, } @article{CTT100609466, author = {A. Tsukazaki and A. Ohtomo and S. Yoshida and M. Kawasaki and C. H. Chia and T. Makino and Y. Segawa and T. Koida and S. F. Chichibu and H. Koinuma}, title = {Layer-by-layer growth of high-optical-quality ZnO film on atomically smooth and lattice relaxed ZnO buffer layer}, journal = {Applied Physics Letters}, year = 2003, } @article{CTT100608811, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. Koinuma}, title = {Temperature quenching of exciton luminescence intensity in ZnO/(Mg,Zn)O multiple quantum wells}, journal = {Journal of Applied Physics}, year = 2003, } @article{CTT100608560, author = {C.H. Chia and T. Makino and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Confinement-enhanced biexciton binding energy in ZnO/ZnMgO multiple quantum wells}, journal = {Applied Physics Letters}, year = 2003, } @article{CTT100608808, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. Koinuma}, title = {Photoluminescence properties of ZnO epitaxial layers grown on lattice-matched ScAlMgO4 substrates}, journal = {Journal of Applied Physics}, year = 2002, } @article{CTT100608810, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. Koinuma}, title = {Size dependence of exciton-longitudinal-optical-phonon coupling in ZnO/Mg0.27Zn0.73O quantum wells}, journal = {Physical Review B}, year = 2002, } @article{CTT100608809, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. Koinuma}, title = {Radiative recombination of electron-hole pairs spatially separated due to quantum-confined Stark and Franz-Keldish effects in ZnO/Mg0.27Zn0.73O quantum wells}, journal = {Applied Physics Letters}, year = 2002, } @article{CTT100608805, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. Koinuma}, title = {Effect of MgZnO-layer capping on optical properties of ZnO epitaxial layers}, journal = {Applied Physics Letters}, year = 2002, } @article{CTT100608772, author = {T. Makino and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and Y. Matsumoto and H. Koinuma}, title = {High-throughput optical characterization for the development of a ZnO-based ultraviolet semiconductor-laser}, journal = {Applied Surface Science}, year = 2002, } @article{CTT100608807, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. Koinuma}, title = {Optical properties of ZnO : Al epilayers: Observation of room-temperature many-body absorption-edge singularity}, journal = {Physical Review B}, year = 2002, } @article{CTT100609362, author = {H. D. Sun and Y. Segawa and T. Makino and C. H. Chia and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Observation of biexciton emission in ZnO/ZnMgO multi-quantum wells}, journal = {Physica Status Solidi B-Basic Research}, year = 2002, } @article{CTT100608806, author = {T. Makino and K. Tamura and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and H. koinuma}, title = {Optical properties of ZnO : Al epilayers and of undoped epilayers capped by wider-gap MgZnO grown by laser MBE}, journal = {Physica Status Solidi B-Basic Research}, year = 2002, } @article{CTT100608558, author = {C.H. Chia and T. Makino and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Well-width dependence of radiative and nonradiative lifetimes in ZnO-based multiple quantum wells}, journal = {Physica Status Solidi B-Basic Research}, year = 2002, } @article{CTT100608874, author = {T. Makino and N. T. Tuan and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Exciton localization in (Cd,Zn)O epilayers and (Cd,Zn)O/(Mg,Zn)O multi-quantum wells on lattice matched substrates}, journal = {International Journal of Modern Physics B}, year = 2001, } @article{CTT100608540, author = {C. H. Chia and T. Makino and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Well-width dependence of radiative and nonradiative recombination times in ZnO/Mg0.12Zn0.88O multiple quantum wells}, journal = {Journal of Applied Physics}, year = 2001, } @article{CTT100608881, author = {T. Makino and N. T. Tuan and H. D. Sun and C. H. Chia and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and T. Suemoto and H. Akiyama and M. Baba and S. Saito and T. Tomita and H. Koinuma}, title = {Temperature dependence of near ultraviolet photoluminescence in ZnO/(Mg, Zn)O multiple quantum wells}, journal = {Applied Physics Letters}, year = 2001, } @article{CTT100608775, author = {T. Makino and C. H. Chia and N. T. Tuan and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Radiative and nonradiative recombination processes in lattice-matched (Cd,Zn)O/(Mg,Zn)O multiquantum wells}, journal = {Applied Physics Letters}, year = 2000, } @article{CTT100608777, author = {T. Makino and C. H. Chia and N. T. Tuan and H. D. Sun and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Room-temperature luminescence of excitons in ZnO/(Mg, Zn)O multiple quantum wells on lattice-matched substrates}, journal = {Applied Physics Letters}, year = 2000, } @article{CTT100608774, author = {T. Makino and C. H. Chia and N. T. Tuan and Y. Segawa and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Exciton spectra of ZnO epitaxial layers on lattice-matched substrates grown with laser-molecular-beam epitaxy}, journal = {Applied Physics Letters}, year = 2000, } @article{CTT100608786, author = {T. Makino and G. Isoya and Y. Segawa and C. H. Chia and T. Yasuda and M. Kawasaki and A. Ohtomo and K. Tamura and H. Koinuma}, title = {Optical spectra in ZnO thin films on lattice-matched substrates grown with laser-MBE method}, journal = {Journal of Crystal Growth}, year = 2000, } @article{CTT100608875, author = {T. Makino and N. T. Tuan and Y. Segawa and C. H. Chia and A. Ohtomo and M. Kawasaki and H. Koinuma}, title = {Temperature dependence of four-wave-mixing spectra in ZnO thin films on sapphire substrates grown with laser MBE}, journal = {Journal of Luminescence}, year = 2000, }