Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Hery S. Djie"'
Autor:
Luke F. Lester, Y. Wang, C. Chen, James C. M. Hwang, Thomas L. Koch, Hery S. Djie, Boon S. Ooi
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 17:1167-1174
Temperature-dependent intrinsic modulation response of InAs/InAlGaAs quantum-dash lasers was investigated by using pulse optical injection modulation to minimize the effects of parasitics and self-heating. Compared to typical quantum-well lasers, the
Publikováno v:
IEEE Journal of Quantum Electronics. 46:1368-1374
The fundamental and dynamic properties of InGaAs-InGaAsP lasers, where emission wavelengths were blue-shifted by quantum-well intermixing through ion implantation and annealing, were investigated to assess possible degradation by intermixing. It was
Publikováno v:
IEEE Journal of Quantum Electronics. 45:1177-1182
The theoretical analysis of optical gain and chirp characteristics of a semiconductor quantum dot (Qdot) broadband laser is presented. The model based on population rate equations, has been developed to investigate the multiple states lasing or quasi
Publikováno v:
IEEE Journal of Quantum Electronics. 45:1168-1176
This paper presents a theoretical model to explain the quasi-supercontinuum interband emission from InGaAs/GaAs self-assembled semiconductor quantum dot lasers by accounting for both inhomogeneous and homogeneous optical gain broadening. The experime
Publikováno v:
Computational Materials Science. 44:167-173
The details of dynamic phenomena of broadband lasing in quantum-dot lasers in association with the role of both inhomogeneous and homogeneous optical gain broadening is theoretically investigated. The theoretical results of room temperature broadband
Autor:
Hery S. Djie, James C. M. Hwang, Joel M. Fastenau, Dong-Ning Wang, Y. Wu, X.-M. Fang, Boon S. Ooi, W. K. Liu
Publikováno v:
Thin Solid Films. 515:4344-4347
The effects of rapid thermal annealing on InGaAs quantum dots grown by atomic layer molecular beam epitaxy to the structural transformation and optical properties are investigated. No misfit dislocation was observed from either the as-grown or anneal
Autor:
Dong-Ning Wang, Hery S. Djie, C.E. Dimas, Gerard Dang, James C. M. Hwang, Boon-Siew Ooi, W. Chang
Publikováno v:
IEEE Sensors Journal. 7:251-257
We report on the design and fabrication of a novel wideband superluminescent diode (SLD) based on InGaAs/GaAs quantum-dot structure. In this device, we monolithically integrate a photon absorber section to suppress lasing action and optical feedback
Publikováno v:
Journal of Crystal Growth. 288:40-43
The intermixing of InGaAs/GaAs quantum dot using isoelectric ion implantation followed by rapid thermal annealing is presented. The implantation was carried out at 200 °C with arsenic (As+) and phosphorus (P+) ions, at various doses, where the ions
Publikováno v:
Journal of Crystal Growth. 288:153-156
We report a broadband superluminescence diode using InGaAs/GaAs self-assembled quantum dots structure grown by atomic layer molecular beam epitaxy. This two-section SLD consists of weakly guided-rib-waveguide gain section (4 μm wide) butt-connected
Publikováno v:
International Journal of Nanoscience. :683-688
We report the study of the interdiffusion effect of quantum-dot (QD) heterostructures, focusing on the theoretical calculation of the electronic structure of interdiffused QDs. A computational model has been developed for QD superlattice system using