An enormous glowing cloud that contains approximately 3,400 solar masses worth of gas has been discovered near the solar ...

The two major limitations of any slow-light structure are dispersion and loss; dispersion limits the available bandwidth, that is, the information content that can be slowed down or stored ...

The spectral dispersion of ultrashort pulses allows the simultaneous focusing of light in both space and ... The two-photon nature of the excitation was confirmed by the quadratic dependence ...

dispersion, and reflection of sunlight in water droplets. A rainbow forms when sunlight passes through raindrops in the air. The light bends as it enters the droplet, bounces off the inside ...