Zobrazeno 71 - 80
of 117
pro vyhledávání: '"Gennady A. Smolyakov"'
Publikováno v:
2007 Conference on Lasers and Electro-Optics (CLEO).
Colloidal synthesis of ZnO nanocrystals (NCs) from zinc alkoxy alkyl precursors in the 1-methyl imidazole/H2O coordinating solvent is reported. The results of NC structural and optical characterization are presented.
Autor:
Nathan J. Withers, Hongjun Cao, Gennady A. Smolyakov, Luke F. Lester, A.L. Gray, Marek Osinski
Publikováno v:
2007 Conference on Lasers and Electro-Optics (CLEO).
Fabrication and characterization of Y-junction-coupled S-section InAs/InGaAs/GaAs quantum dot ring lasers with high unidirectionality is reported. The new design suppresses the unwanted counterpropagating modes more effectively than in the previous S
Autor:
Marek Osinski, Gennady A. Smolyakov
Publikováno v:
2007 Quantum Electronics and Laser Science Conference.
The role of metal apertures in lateral-mode confinement in VCSELs is clarified by a detailed effective-frequency-method analysis of an oxide-confined VCSEL structure. The conditions for suppression of higher-order lateral modes using metal apertures
Publikováno v:
SPIE Proceedings.
Mid-infrared light-emitting diodes with InGaSb/AlGaAsSb triple-quantum-well active region have been integrated into arrays of either 200u 200 µm 2 or 40u 40 µm square pixels. Two generations of arrays have been designed, fabricated and tested. The
Publikováno v:
Colloidal Quantum Dots for Biomedical Applications II.
We report on colloidal synthesis of ZnO and novel ZnO/ZnS core/shell nanocrystals (NCs) from zinc alkoxy alkyl precursors in the MeIm/H 2 O coordinating solvent. The results of NC structural and optical characterization are presented.
Publikováno v:
SPIE Proceedings.
The nonlinear mode interactions (NMIs) in semiconductor lasers produce perturbations of optical parameters in the vicinity of strong-mode frequencies. These perturbations include changes in the complex refractive index, which could either increase or
Publikováno v:
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference.
The optical and microwave spectra of 5-mm-long quantum-dot diode lasers are investigated. Comparison of observed beating lines with quantum-well lasers shows differences in the group index, linewidth, and line shape.
Publikováno v:
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference.
We report on quantum-dot-based optoelectronic integrated circuit incorporating twin ring lasers, waveguides, directional couplers, Y-junction mixer, and photodetectors. Frequency beating between integrated quantum-dot ring lasers is demonstrated for
Publikováno v:
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference.
Nonlinear interactions between optical modes in semiconductor lasers and optical amplifiers perturb optical parameters in the vicinity of a strong mode frequency. This effect is considered in terms of slow and fast light propagation.
Autor:
Melisa R. Greenberg, Timothy J. Boyle, Gennady A. Smolyakov, Scott D. Bunge, Marek Osinski, Jason Jones
Publikováno v:
2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference.
We report on colloidal synthesis of InP and InN nanocrystals (NCs) from organometallic precursors in a noncoordinating solvent using myristic acid as a ligand. The results of NC structural and optical characterization are presented.