quantum dot laser structure
Carrier density dependence of plasmonenhanced nonradiative energy transfer in a hybrid quantum well quantum dot structure
... The emission and energy transfer processes were characterised using photoluminescence (PL) spectroscopy and time-resolved photoluminescence (TRPL). For PL measurements the samples were excited at normal incidence using a ...
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Phonon-Assisted Population Inversion of a Single InGaAs/GaAs Quantum Dot by Pulsed Laser Excitation
... InGaAs/GaAs quantum dots embedded in the intrinsic region of an n-i-Schottky diode ...Ti:sapphire laser with repetition rate of ...the quantum dot under an applied electric-field, leading to a ...
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Investigation of Carrier Conduction Mechanism over InAs/InP Quantum Dashes and InAs/GaAs Quantum Dots Based p i n Laser Heterostructures
... semiconductor laser struc- tures, containing quantum dot layers (QDs), were investigated by means of tem- perature dependent current-voltage and electroluminescence measurements over InAs/InP, and ...
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Wavelength-tunable colloidal quantum dot laser on ultra-thin flexible glass
... the laser mode transverse intensity profile and its overlap with the gain region were ...the laser threshold (a higher overlap factor leading to a lower threshold in ...the laser structures, ...whole ...
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Photoelectric Properties of InAs/GaAs Quantum Dot Photoconductive Antenna Wafers
... InAs/GaAs quantum dot photoconductive antenna in the wavelength region between 1140 nm and 1250 nm at temperatures ranging from 13 K to 400 K is ...with quantum dot semiconductor lasers to ...
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A high performance quantum dot superluminescent diode with a two section structure
... self-assembled quantum dots [QDs] [10-12] and quantum well grown on a high-index surface are benefi- cial to broaden the spectral bandwidth of the device ...broadband laser diodes ...
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Nonmechanical Infrared Beam Steering Using Blue Addressed Quantum Dot Doped Liquid Crystal Grating
... numerical laser steering, a couple of devices was invented including polarized prism [13], liquid crystal polarization grating (LCPG) (passive and active) [14, 15], multiplex volume Bragg grating (VBG) ...grating ...
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An entangled-LED driven quantum relay over 1 km
... tum dot nanostructures[30, 31], for which electrical in- jection schemes could be ...the laser and biexciton pulse shapes, reducing the exci- tation pulse width, reducing the fine-structure-splitting ...
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Picosecond control of quantum dot laser emission by coherent phonons
... the structure, since there are only limited tools to achieve resonance ...of quantum phenom- ena ...microcavity laser with a quantum dot (QD) ensemble as the active medium, and has been ...
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Ultrashort pulse generation from quantum dot semiconductor diode lasers
... To achieve higher repetition rates in mode-locked lasers it is necessary to decrease the cavity length. This poses a significant challenge to QD lasers because of their lower gain and the operation in short cavities may ...
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Chemical nature and structure of organic coating of quantum dots is crucial for their application in imaging diagnostics
... and structure of organic/bioorganic shells of quantum dots are crucial for their colloidal stability and solubility in physiological fluids, and their biocompatibility and ...organic-coated quantum ...
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Influence of Quantum Dot Layer on the Properties of Quantum Dot Light Emitting Diodes
... the structure of ITO/PEDOT: PSS/Poly-TPD/GA-CdSe/Zns/ZnO and samples of QLEDs with the structure of ITO/PEDOT: PSS/Poly-TPD/CdSe/CdS/ZnS/ZnO were ...
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A Study on Quantum Dot and its Applications
... the quantum-size ...the quantum confinement effect causes increasing of the excitonic transition energy and blue shift in the absorption and luminescence band gap ...addition, quantum confinement ...
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ZnS/SiO 2Passivation Layer for High-Performance of TiO 2/CuInS2 Quantum Dot Sensitized Solar Cells
... Semiconductor quantum dots (QDs) based on II-VI group such as CdSe,[1] CdTe,[2] CdS,[3] PbS,[4] PbSe,[5] and ...for quantum dot sensitized solar cell (QDSSC) and photocatalysis applications, due to ...
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Quantum Dots for Wide Color Gamut Displays from Photoluminescence to Electroluminescence
... is quantum dot light- converting film (QLCF) and the assembly structure in LCD module is illustrated in ...typical structure of QD film in- cludes two preventing films and one QD layers (see ...
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Quantum dot cascade laser
... semiconductor laser sources based on intersubband transitions in multiple quantum well systems ...Although quantum cascade lasers have experienced rapid development, several drawbacks still ...
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Quantum Nanostructures by Droplet Epitaxy
... InAs quantum rings (QRs) are obtained as shown in figure ...many quantum dots on the ring structure. Quantum dot rings (QDRs) could be realized as shown in figure ...
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Financial Intermediation and Economic Growth: Bank Credit Maturity and Its Determinants
... When the width of the QW is increased, the energy spacing between the levels in the QW decreases causing a red-shift of the first two peaks. The results for detectors 1299 and 1388 support this idea. The 1388 detector ...
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Optical Gain and Confinement in Gaas/Algaas Structure Quantum Well Lasers
... 67 In a quantum well structure, the two dimensional nature of the density of states changes the gain curve. In three dimensions, the density of states increases with energy. As a result of injection ...
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Telecommunication Wavelength Band Single Photon Emission from Single Large InAs Quantum Dots Nucleated on Low Density Seed Quantum Dots
... In order to gain insight into the photon statistics of the active QD emission from the BQD material system (i.e., the spectral line in the inset of Fig. 5), we measured the second-order time correlation function g (2) ...
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