上周五科学家试验性的第一次发射了粒子光束 --但没有尝试任何的粒子碰撞。
On Friday scientists sent the first beam of particles around the machine - but without attempting any collisions.
粒子周围的空气受热,但光束的空心部分仍然保持原来的温度。
The air around the particle heats up, but the hollow center of the beam stays cool.
光束粒子——称为光子——携带的能量取决于它们的频率。
Light particles - called photons - carry a packet of energy that depends on their frequency.
在连续133小小时向空中发射密集激光束从而在空中制造出硝酸粒子后,空气中的水分子凝聚在一起形成了小水滴。
Following 133 hours of firing a beam of intense laser light which created nitric acid particles in the air it resulted in binding the water molecules together to create droplets.
欧洲粒子物理研究所必须清理从消防水带那么粗的管道里冒出的“煤烟般的灰尘”,所以要安装极端超高真空设施保证质子光束畅通无阻。
Cern had to clean "soot-like dust" from the firehose-size pipes meant to contain an extreme vacuum so that nothing would obstruct the proton beams passing through.
瑟科表示:“一旦我们能小心翼翼地把反粒子从‘电磁瓶’中取出,让它们成为一道细流、一道光束,或者说,更像是从牙膏管中挤出的一条牙膏。”
"One can then carefully push them out of the bottle in a thin stream, a beam, much like squeezing a tube of toothpaste," Surko said.
针对等离子体对激光的导引和离焦现象,以及应用激光操纵粒子的空心环状光束产生进行了模型化分析和讨论。
Using different refractive index distributions, the phenomena of plasma waveguide and the application of a ring shaped beam in the manipulation of particles are discussed, separately.
由于吸收和散射的作用,大气中的许多分子和粒子使得红外光束消失。
Many molecules and particles in the atmosphere cause extinction of an incident beam of infrared radiation due to absorption and scattering processes.
和其它任何一种粒子加速器一样,站在这种光束的路径上会引起非常壮观的,而且致命的后果。
With any other kind of accelerator, standing in the beam would have spectacular and fatal consequences.
量子力学波动性使得冷原子穿越一个激光束时明显地展现出与经典粒子(热原子)不同的结果。
Because of quantum wave nature, cold atoms tunneling through a laser beam can obviously have a completely different feature from that of a classical particle (hot atom).
光的吸收可以同时导致光束的自旋角动量或轨道角动量转移给微米粒子,就像光学镊子一样引起粒子的转动,从而形成光学扳手。
Absorption of the light allows both the spin and orbital angular momentum of a light beam to be transferred to microscopic particles held within optical tweezers, forming an optical spanner.
此方程与势作用下粒子的运动方程形式一致,因此可用势作用下的粒子行为来描述高斯光束的呼吸模式。
The equation is formally consistent with that of a particle moving in potential well, so we can use the behavior of a particle moving in potential well to describe the breath mode of Gaussian beams.
大气粒子对激光束的散射是造成光束衰减的原因之一。
One of the reasons of attenuation is absorbing of particles.
由于这种局域空心光束具有低相干和涡旋的特性,所以在微观粒子的操纵、诱捕和诱导旋转中它能够被应用。
Because such bottle beams possess characteristics of low coherence and vortex, it may be used in microscopic particles guiding, trapping, and inducing rotation.
但是,在空心光束中可以实现对地折射率粒子的稳定捕获,即粒子的相对折射率可以小于1。
But, when the doughnut laser beam is used as trapping light, relative index can be less than 1. The beam waist of focused laser beam has a virtual affection for the trapping force.
采用三维测试粒子模拟,研究了电子和组合激光束的相互作用。
Using 3d test particle simulation, the interaction of slow electrons with the combined laser beam in vacuum is investigated.
采用三维测试粒子模拟,研究了电子和组合激光束的相互作用。
Using 3d test particle simulation, the interaction of slow electrons with the combined laser beam in vacuum is investigated.
应用推荐