نتایج جستجو برای: quantum electronics
تعداد نتایج: 377066 فیلتر نتایج به سال:
In the past 20 years the semiconductor laser has become a key device in optical electronics because of its pure output spectrum and high quantum efficiency. As the capabilities of laser diodes have grown, so has the range of applications contemplated for them. The laser performance successes gained using quantum wells in optoelectronic devices can be extended by adopting quantum dot structures....
با رشد علوم اطلاعات کوانتومی و محاسبات کوانتومی لزوم پیاده سازی این تئوری ها بر پایه ادوت فیزیکی روز به روز بیشتر احساس می شود. در این راستا نور با خواص فیزیکی خود یکی از گزینه های مناسب برای پیاده سازی این تئوری ها بوده و با قابلیت بالایی که در عرصه جدید از خود نشان داده بی شک با سرعتی باور نکردنی از رقبای خود پیشی می گیرد. خصوصیات کوانتومی نور به ما اجازه می دهد تا بتوان از آن به عنوان بستر ف...
We discuss the development of quantum optical coherence tomography (Q-OCT), an imaging modality with a number of potential applications. Although Q-OCT is not expected to replace its eminently successful classical cousin, optical coherence tomography (OCT), it does offer some advantages as a biological imaging paradigm. These include greater axial resolution and higher signal-to-background rati...
V. Esposito,1,* L. Rettig,1,2 E. Abreu,3 E. M. Bothschafter,1 G. Ingold,1,4 M. Kawasaki,5,6 M. Kubli,3 G. Lantz,3 M. Nakamura,5,7 J. Rittman,1,4 M. Savoini,3 Y. Tokura,5,6 U. Staub,1 S. L. Johnson,3 and P. Beaud1,4,† 1Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland 2Fritz Haber Institute, 14195 Berlin, Germany 3Institute for Quantum Electronics, ETH Zürich, 8093 Züric...
Coupling a two-dimensional (2D) semiconductor heterostructure to a superconductor opens new research and technology opportunities, including fundamental problems in mesoscopic superconductivity, scalable superconducting electronics, and new topological states of matter. One route towards topological matter is by coupling a 2D electron gas with strong spin-orbit interaction to an s-wave supercon...
Deformable full-colour light-emitting diodes with ultrafine pixels are essential for wearable electronics, which requires the conformal integration on curvilinear surface as well as retina-like high-definition displays. However, there are remaining challenges in terms of polychromatic configuration, electroluminescence efficiency and/or multidirectional deformability. Here we present ultra-thin...
Solution-processed black phosphorus quantum-dot-based resistive random access memory is demonstrated with tunable characteristics, multilevel data storage, and ultrahigh ON/OFF ratio. Effects of the black phosphorous quantum dots layer thickness and the compliance current setting on resistive switching behavior are systematically studied. Our devices can yield a series of SET voltages and curre...
In this paper we consider the Rapid Single-Flux Quantum (RSFQ) circuits with reduced Josephson current density and especially deal with one of the basic building blocks of these electronics the DC to SFQ converter. For future promising RSFQ applications the critical current of the Josephson junctions should be reduced (by reduction of Josephson current density) to several μA, resulting into val...
The mechanism for off-resonant electron transport through small organic molecules in metallic junctions is predominantly coherent tunneling. Thus, new device functionalities based on quantum interference could be developed in the field of molecular electronics. We invoke a partitioning technique to give an analytical treatment of quantum interference in a benzene ring. We interpret the antireso...
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