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From stardust to pale blue dot:Carbon's interstellar journey to Earth（图）
From stardust pale blue dot Carbon interstellar journey Earth
2021/4/16
We are made of stardust, the saying goes. U.S. National Science Foundation-funded research at the University of Michigan reveals that the statement may be more true than we thought.The ...
Nanoscale islands dot light-driven catalyst（图）
Nanoscale islands dot light-driven catalyst
2017/10/25
Individual nanoscale nuggets of gold, copper, aluminum, silver and other metals that capture light’s energy and put it to work are being employed by Rice University scientists who have discovered a wa...
Researchers develop faster,precise silica coating process for quantum dot nanorods
Researchers develop faster silica coating process quantum dot nanorods
2016/7/15
CdSe/CdS core/shell quantum dot nanorods (QDNRs) exhibit anisotropic optical properties. Overcoating QDNRs with silica (SiO2) shells is desirable for protecting the surface of the inorganic core, impa...
Just as the single-crystal silicon wafer forever changed the nature of communication 60 years ago, a group of Cornell researchers is hoping its work with quantum dot solids – crystals made out of crys...
Advances at Oregon State University in manufacturing technology for “quantum dots” may soon lead to a new generation of LED lighting that produces a more user-friendly white light, while using less to...
Perceptual learning of dot pattern
perceptual learning dot pattern transfer sequence effect
2015/7/29
Dot pattern is a type of pattern defined by specific spatial relationship among some dots. As a compensation for concrete and meaningful visual stimuli, meaningless dot pattern can be used as stimuli ...
本文比较了RT-PCR和dot-ELISA两种方法对单头灰飞虱携带水稻条纹病毒(Rice stripe virus, RSV)的检出率、检测灵敏度和检测成本。结果表明, 两种方法均能检测到单头灰飞虱体内的RSV, RT-PCR检测单头灰飞虱体内RSV的阳性检出率比dot-ELISA方法低11.79%~15.77%, 但RT-PCR的检测灵敏度比dot-ELISA高10倍, RT-PCR技术的检测成...
A Novel Reconfiguration Scheme in Quantum-Dot Cellular Automata for Energy Efficient Nanocomputing
Reconfiguration QCA Nanocomputing Wire Crossing QCA Adder
2014/12/8
Quantum-Dot Cellular Automata (QCA) is currently being investigated as an alternative to CMOS technology. There has been extensive study on a wide range of circuits from simple logical circuits such a...
A limit theorem for scaled eigenvectors of random dot product graphs
limit theorem scaled eigenvectors random dot product graphs
2013/6/14
We prove a central limit theorem for the components of the largest eigenvector of the adjacency matrix of a one-dimensional random dot product graph whose true latent positions are unknown. In particu...
Transport in a three-terminal graphene quantum dot in the multi-level regime
Transport three-terminal graphene quantum dot the multi-level regime
2012/2/27
We investigate transport in a three-terminal graphene quantum dot. All nine elements of the conductance matrix have been independently measured. In the Coulomb blockade regime accurate measurements of...
A GaSb/GaAs quantum-dot light-emitting diode (QD LED) with a single GaSb QD layer is investigated in this paper. The room-temperature photoluminescence (PL) peak blue shift with increasing excitation ...
Attojoule all-optical switching with a single quantum dot
Attojoule all-optical single quantum dot Quantum Physics
2011/8/17
Abstract: We experimentally investigate the dynamic nonlinear response of a single quantum dot (QD) strongly coupled to a photonic crystal cavity-waveguide structure. The temporal response is measured...
Ultrafast photon-photon interaction in a strongly coupled quantum dot-cavity system
photon-photon interaction coupled quantum dot-cavity system two weak light beams Quantum Physics
2011/8/17
Abstract: We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all optical switching of a weak...
Strain-tuning of quantum dot optical transitions via laser-induced surface defects
Strain-tuning quantum dot optical transitions laser-induced surface defects
2011/8/17
Abstract: We discuss the fine-tuning of the optical properties of self-assembled quantum dots by the strain perturbation introduced by laser-induced surface defects. We show experimentally that the qu...
Bloch-wave engineering of quantum dot-micropillars for cavity quantum electrodynamics experiments
Bloch-wave engineering quantum dot-micropillars cavity quantum electrodynamics experiments
2011/8/4
Abstract: We have employed Bloch-wave engineering to realize submicron diameter ultra-high quality factor GaAs/AlAs micropillars (MPs). The design features a tapered cavity in which the fundamental Bl...