Using new techniques, Yale researchers have demonstrated the ability to use lasers to cool quantized vibrations of sound ...

Interactions between atoms and molecules are facilitated by electromagnetic fields. The bigger the distance between the ...

介质振荡器的基本结构如下图所示： 介质谐振器（Dielectric Resonator, 简称DR）放置在金属空腔中，与微带线进行耦合产生振荡的能量，谐振器的Q值已经接近金属空腔谐振器，因此介质振荡器的相位噪声较低。 介质谐振器做为DRO最 ...

Scientists used lasers to cool sound vibrations in large objects to their quantum ground state, a breakthrough for ...

Nonlinear optical materials such as silicon can be used to make on-chip devices that break dynamic reciprocity. (Courtesy: K Xia) A new method for making devices that act like a “one-way street” for ...

A new micro-ring resonator has been developed that is claimed to produce copious numbers of entangled photons using miniscule amounts of energy and can fit onto an ordinary silicon chip. This ...

It is this: If you make a graph of how the resonator’s frequencies change while you “tune” the resonator — by varying its properties in almost any way — the graph will show braids and knots. “The ...