Proceedings

12. Magneto-photoluminescence spectroscopy of exciton fine structure in nitrogen d-doped GaAs
AIP Conference Proceedings Volume 1399, PHYSICS OF SEMICONDUCTORS: 30th International Conference on the Physics of Semiconductors - ICPS 2010, pp.87-88 (2011).
Y. Harada, Y. Horiuchi, O. Kojima, T. Kita, O. Wada

11. Intraband relaxation of photoexcited carriers in multiple stacked quantum dots and quantum dot chains
35th IEEE Photovoltaic Specialists Conference, Proc. of the 35th IEEE Photovoltaic Specialists Conference, pp. 1823-1826 (2010).
O. Kojima, M. Mamizuka, T. Kita, O. Wada, K. Akahane

10. Energy band structure design for quantum-dot intermediate-band solar cells
35th IEEE Photovoltaic Specialists Conference, Proc. of the 35th IEEE Photovoltaic Specialists Conference, pp. 1808-1813 (2010).
W. Hu, T. Inoue, T. Kita, O. Kojima, O. Wada

9. Self-assembled InAs quantum dots within a vertical cavity structure for all-optical switching devices
Physics and Simulation of Optoelectronic Devices XVIII, Proc. of SPIE, Vol. 7610, p.76100Q (2010).
C. Y. Jin, O. Kojima, T. Inoue, T. Kita, O. Wada, M. Hopkinson, K. Akahane

8. Vertically stacked InAs quantum dots for polarization- independent semiconductor optical amplifiers
Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VII, Proc. of SPIE, Vol. 7579, p.75971J (2010).
T. Inoue, M. Asada, O. Kojima, T. Kita, O. Wada

7. Optical cancellation of exciton population in GaAs thin films
3RD INTERNATIONAL LASER, LIGHTWAVE AND MICROWAVE CONFERENCE PROCEEDINGS, 24-TP-1-1 (2007).
O. Kojima, A. Miyagawa, T. Kita, O. Wada, T. Isu

6. Control of optical emission from coupled excitonic states in quantum dot superlattice structures
2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings, pp. 197-200 (2007).
H. Nakatani, T. Kita, O. Kojima, O. Wada, K. Akahane, M. Tsuchiya

5. Selective generation of quantum beats of weakly confined excitons
AIP Conference Proceedings Volume 893, PHYSICS OF SEMICONDUCTORS: 28th International Conference on the Physics of Semiconductors - ICPS 2006, pp.457-458 (2007).
O. Kojima, T. Isu, J. Ishi-Hayase, M.Sasaki, M. Tsuchiya

4. Coupling of coherent phonons to excitonic quantum beats in GaAs/AlAs multiple quantum wells
Ultrafast Phenomena in Semiconductors and Nanostructure Materials IX, Proc. of SPIE Vol. 5725 pp. 246-256 (2005).
K. Mizoguchi, O. Kojima, M. Nakayama

3. Excitonic quantum beats dressed with coherent phonons
Springer Series in Chemical Physics: Ultrafast Phenomena XIV, pp. 257-259 (2005).
Springer Verlag Berlin
K. Mizoguchi, T. Furuichi, O. Kojima, M. Nakayama K. Akahane, N. Yamamoto, N. Ohtani

2. Intense coherent optical phonons driven by impulsive excitonic interference under electric fields
Springer Series in Chemical Physics: Ultrafast Phenomena XIV, pp. 251-253 (2005).
Springer Verlag Berlin
O. Kojima, K. Mizoguchi, M. Nakayama

1. Epitaxy effects on excitons in CuI thin films
Proceedings of the 3rd International Conference on Excitonic Processes in Condensed Matter, pp. 477-482 (1998).
The Electrochemical Society
D.Kim, I. Tanaka, O. Kojima, H. Ichida, M. Nakayama, H. Nishimura