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Individual quantum dots can be created from two-dimensional electron or hole gases present in remotely doped quantum wells or semiconductor heterostructures called lateral quantum dots. The sample surface is coated with a thin layer of resist and a lateral pattern is then defined in the resist by electron beam lithography .
This plot is a computer simulation of EIT in an InAs/GaAs quantum dot Electromagnetically induced transparency ( EIT ) is a coherent optical nonlinearity which renders a medium transparent within a narrow spectral range around an absorption line .
Quantum Algorithms, Quantum Programming, Quantum Machine Learning, [36] Quantum Software Tools, Open Source Software: Center for Quantum Technologies, National University of Singapore: Singapore: Fujitsu [37] September 28, 2015: Communication Quantum Dots: University of Tokyo: Tokyo, Japan Google QuAIL [38] May 16, 2013: Computing ...
Silicon quantum dots are metal-free biologically compatible quantum dots with photoluminescence emission maxima that are tunable through the visible to near-infrared spectral regions. These quantum dots have unique properties arising from their indirect band gap , including long-lived luminescent excited-states and large Stokes shifts .
Scanning quantum dot microscopy (SQDM) is a scanning probe microscopy (SPM) that is used to image nanoscale electric potential distributions on surfaces.
Fabrication of the quantum dot LED involved a blue chip as a blue light source and a silicon resin containing the quantum dots on top of the chip creating the sample, with good results obtained from the experiment. [22] Silicon A third type of quantum dot that does not contain heavy metals is the silicon quantum dot.
Quantum dots (QDs) are nano-scale semiconductor particles on the order of 2–10 nm in diameter. They possess electrical properties between those of bulk semi-conductors and individual molecules, as well as optical characteristics that make them suitable for applications where fluorescence is desirable, such as medical imaging.
Another obstacle to the specific goal of electrically-pumped quantum dot lasing is the generally weak conductivity of quantum dot films. Devices based on quantum dot active media have found commercial application in medicine ( laser scalpel , optical coherence tomography ), display technologies (projection, laser TV ), spectroscopy and ...