exciton 的定义
Physics.
- a localized, mobile excited state of a crystal, consisting of an electron and a hole bound together.
更多exciton例句
- The photon bounces back and forth between the mirrors roughly a million times before it escapes, and as it bounces the photon blends with the exciton to form a polariton.
- Many photons and excitons are caged and combined in this way, and these polaritons behave en masse like liquid light, which is frictionless and doesn’t scatter.
- At low densities and high temperatures, excitons zip around very much like atoms in a gas.
- By now we can make excitons in large quantities in certain semiconductors and other materials.
- An exciton can even stick to a photon—a particle of light—and form something called a “polariton.”