Researchers at the University of Rochester have shown that defects on an atomically thin semiconductor can produce light-emitting quantum dots. The quantum dots serve as a source of single photons and could be useful for ...
Nanophysics
May 4, 2015
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75
Berkeley Lab researchers have developed a nano-sized optical antenna that can greatly enhance the spontaneous emission of light from atoms, molecules and semiconductor quantum dots. This advance opens the door to light-emitting ...
Optics & Photonics
Feb 3, 2015
1
1125
Princeton University researchers have built a rice grain-sized laser powered by single electrons tunneling through artificial atoms known as quantum dots. The tiny microwave laser, or "maser," is a demonstration of the fundamental ...
Optics & Photonics
Jan 15, 2015
0
2654
Imagine building a chemical reactor small enough to study nanoparticles a billionth of a meter across. A billion times smaller than a raindrop is the volume of an E. coli cell. And another million times smaller would be a ...
Nanophysics
Nov 18, 2014
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0
Semiconductor quantum dots (QDs) are nanoscale semiconductors that exhibit size dependent physical properties. For example, the color (wavelength) of light that they absorb changes dramatically as the diameter decreases. ...
Nanophysics
May 22, 2014
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1
(Phys.org) —A promising material is lining itself up as a candidate for a quantum memory. A team at the Max Planck Institute for the Science of Light in Erlangen is the first to succeed in performing high-resolution spectroscopy ...
Quantum Physics
May 14, 2014
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0
(Phys.org) —A new version of "spaser" technology being investigated could mean that mobile phones become so small, efficient, and flexible they could be printed on clothing.
Nanophysics
Apr 24, 2014
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0
(Phys.org) —A new version of "spaser" technology being investigated could mean that mobile phones become so small, efficient, and flexible they could be printed on clothing.
Nanophysics
Apr 16, 2014
15
0
(Phys.org) —In physics, there's small, and then there's nullity – as in zero-dimensional.
Nanophysics
Mar 4, 2014
3
0
Using nanofabricated waveguides in a silicon-based platform, researchers from the NIST Center for Nanoscale Science and Technology (CNST) have developed a frequency conversion interface between the optical transition wavelengths ...
Optics & Photonics
Dec 19, 2013
0
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