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Gain and the threshold of three-dimensional quantum-box lasers
Abstract
Gain and threshold current density are analyzed for quantum-box lasers where electrons are confined in quantum well three-dimensionally, based on the density-matrix theory of semiconductor lasers with relaxation broadening. The electronic dipole moment and its polarization dependence are first analyzed, and it is shown that the gain becomes maximum when the electric field of light is parallel to the longest side of the quantum box. Calculated gain is about 10 times that of bulk crystal for 100 Å × 100 Å × 100 Å GaAs/Ga0.8Al0.2As quantum box, and 15 times for Ga0.47In0.53As/InP quantum box with the same size, respectively. The threshold current density are 45 A/cm2and 62 A/cm2for GRINSCH GaAs/(Ga0.8Al0.2As-Ga0.4Al0.6As) and Ga0.47In0.53As/(Ga0.28In0.72As0.6P0.4-InP), respectively, where for the GaInAs/ GaInAsP/InP system the intervalence band absorption and nonradiative recombinations have been assumed to be the same as those obtained for bulk crystals experimentally. These results show the possibility of remarkable reduction in the laser threshold by the quantum-box structures.
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Cited by
Optical Gain and Stimulated Emission in Nanocrystal Quantum Dots
Klimov, V. I., Mikhailovsky, A. A., Xu, S., Malko, A., Hollingsworth, J. A., Leatherdale, C. A., Eisler, H.-J., & Bawendi, M. G. (2000) · Science · doi:10.1126/science.290.5490.314 · Cited by 2,825
Kambhampati, P. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp2058673 · Cited by 391
Smirnova, T. N., Sakhno, O. V., Yezhov, P. V., Kokhtych, L. M., Goldenberg, L. M., & Stumpe, J. (2009) · Nanotechnology · doi:10.1088/0957-4484/20/24/245707 · Cited by 51
Structural basis of multistationary quantum systems. I. Effective single-particle dynamics
Obermayer, K., Teich, W. G., & Mahler, G. (1988) · Physical Review B · doi:10.1103/physrevb.37.8096 · Cited by 48
Metadata
- Authors
- Asada, M., Miyamoto, Y., & Suematsu, Y.
- Venue
- IEEE Journal of Quantum Electronics
- Published
- 1986-09
- Volume
- 22
- Issue
- 9
- Pages
- 1915-1921
- ISSN
- 0018-9197 (ISSN-L)
- OpenAlex
- W1972875210
- Cited by
- 1,134
- References
- 0
- FWCI
- 7.03
- Type
- journal article
- Language
- en
- Open access
- closed
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- Asada, M., Miyamoto, Y., & Suematsu, Y. (1986). Gain and the threshold of three-dimensional quantum-box lasers. IEEE Journal of Quantum Electronics. https://doi.org/10.1109/jqe.1986.1073149
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