目的探讨一种快捷、准确求光子束不规则射野等效方野的方法。
Objective to explore a rapid method of calculating an equivalent square field for irregular photon beam fields.
通过把光子束注入暗室生成雷射。管理雷射原子的能态,以控制其输出。
Create a laser by pumping the chamber with a photon beam. Manage the energy states of the laser's atoms to control its output.
这意味着要用高能的电子或光子束来处理食品,用它们来干扰微生物的DNA,阻止微生物释放危险的毒素和增殖。
That means treating food with high-energy bursts of electrons or photons to attack the micro-organisms' DNA, preventing them from spitting out dangerous toxins and proliferating.
这让你对一束激光中有多少个光子有了一点概念。
This gives you a little bit of an idea of just how many individual photons there are in a laser beam of light.
这让你对一束激光中有多少个光子有了一点概念。
This gives you a little bit of an idea of just how many individual photons there are in a laser beam of light.
当一束电子或者光子通过这两条裂缝,他们就像波纹一样并产生互相干涉的图案。
When electrons or photons in a beam pass through the two slits, they act as waves and produce an interference pattern on the wall.
如果他们状态一样,这两个光子就在分束器一起出来。
If they are the same, the two photons will come out of the beam-splitter together.
基于这个道理,你需要一个诸如谢尔兹博士所设计的设备,当光子从分束器不同地方出来的时候,可以检测并计数单个光子。
It is for this reason that you need a device, such as Dr Shields's, which can detect and count individual photons as they come out of different parts of the beam-splitter.
举个最简单的例子,当发送方将一束光子流传送给接受方,必须从两种模式中的选取一种对其中的光子进行编码(译码者通常称发送方为爱丽丝,接受方为鲍勃)。
The simplest example is when the sender (whom cryptographers usually call Alice) dispatches a stream of them to the receiver (who is known as Bob). These photons will have one of two modes.
光子,即光能束,冲击铬原子中的电子。
The light photons, or bundle of light energy, knock electrons in the chromium atoms.
量子光场主要存在三种非经典效应:光子反聚束、亚泊松分布和压缩效应。
There are three main non-classical features for quantum field, i. e. photon anti-bunching effect, sub-Poissonian statistics distribution, and squeezing effects.
制备金属光子晶体方法包括:电子束刻蚀结合后续剥离法、激光干涉光刻结合干刻蚀技术等。
The fabrication methods of MPC include electron beam lithography with subsequent evaporation and lift-off, interference lithography with dry-etching technology etc.
依照这一理论:光被以含有能量束的光子形式吸收或者释放。
According to this theory: light is absorbed or released in bundles of energy called photons.
得到了在不同情况下出现的光子反聚束、光场的亚泊松行为以及光场的挤压性质。
We obtain antibunching of photons. the sub-poissonian behaviour of optical fields and their squeezing properties in different cases.
笔者指出,当入射引力波和高斯束不同频率时,高斯束谐振系统产生的一阶扰动光子流没有观测效应。
This paper points out that the first-order perturbation photon flux produced by this system has not observed effect when GWs is different from frequency of Gaussian beam.
LCVR控制入射光子的偏振度,从而实现对自旋极化电子束极化方向的调制。
The production of spin-polarized electrons and the modulation of polarization direction with liquid crystal variable retarder (LCVR) are discussed.
使用光学分束器和单光子源,利用单光子态和真空态制备出了纠缠单光子态。
A method of generating the single-photon entangled states of a single photon state and a vacuum state through utilizing optical beam-splitter and single-photon source is described.
该方案给出了平面引力波通过同时存在高斯束和匀强静磁场背景区域的扰动解,并发现在同步谐振条件下可望得到可供观测的扰动光子流。
Such a scheme says that the resonance would occur when Gaussian beam, uniform static magnetic field and GWs exist in the same area and give detectable signal photon fluxes due to GWs.
本文提出的光子虚拟源模型能够较为精确地模拟计算任意形状和强度的外照射放射治疗射束分布。
The proposed photon virtual source model is suitable for accurately simulating arbitrary shape and intensity distributions of external beam.
本文应用蒙特卡罗算法建立了一个光子虚拟源模型,用于模拟计算任意形状和强度的外照射放射治疗的射束分布。
A photon virtual source model was developed for simulating arbitrary shape and intensity distributions of external beam using Monte Carlo method.
同时发现通过对原子的选择性测量,场的压缩特性和光子的反聚束效应会增强。
Meanwhile it is shown that squeezing of field and photon antibunching can be greatly enhanced via selective atomic measurements.
该方案所使用的器件包括分束器和可以区分奇偶光子数的理想光子探测器。
The devices used are beam splitters and ideal photon detectors capable of distinguishing between odd and even photon numbers.
本文采用数值计算方法研究了强相干初态光场与级联型三能级原子相互作用中的光子聚束与反聚束效应。
The evolution of the field entropy of the interaction between three level cascade atom and field in a Kerr medium has been studied.
本发明提供了一种基于光子晶体自准直的偏振分束器及其分束方法。
The invention provides a polarization beam splitter based on auto-collimation of photonic crystal and beam splitting method thereof.
光子晶体波导分束器是集成光学电路的重要组成元件。
The beam splitter based on photonic crystal waveguides is taken as an essential component in integrated optical circuits.
相比反聚束效应而言,强聚束效应存在于一些多光子态如双光子相干态中,它们有望用于量子计量、量子存储等方面。
Such super-bunched light is non-classical and can be used for quantum storage and retrieval in quantum information science. The main works of this dissertation are as follows:1.
本文研究了激发相干态与与V -型量子拍频三能级原子作用时的动力学行为,并对光子反聚束效应和系统光场的压缩特性进行了细致的讨论。
The dynamic behavior of the interaction between the V-type quantum-beat three-level atomic system and the single-mode squeezed vacuum field has been studied based on the quantum theory.
本文研究了激发相干态与与V -型量子拍频三能级原子作用时的动力学行为,并对光子反聚束效应和系统光场的压缩特性进行了细致的讨论。
The dynamic behavior of the interaction between the V-type quantum-beat three-level atomic system and the single-mode squeezed vacuum field has been studied based on the quantum theory.
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