英国论文代写：全息照相术

英国论文代写：全息照相术

全息照相术使用干涉原理。当光束干涉时会产生干涉图样。全息图基本上捕获了这种干涉模式。全息生产系统将会有光源，捕捉或记录介质和材料来查看全息图。以下是制作全息系统所需的元件

光学系统:全息术的光学系统是必要的,以确保地面振动不改变图像的预测。它也为全息系统其他元素的必要支架充当衬底。

环境:环境全息术在哪里生产是最重要的。它应该在一个可以进行光线调整的地方。如果必要的话，房间应该可以完全变暗。必须有足够的空间来设置光学表，而且还必须有必要的空间来研究投影。在Obi的情况下，我们可以看到，Obi创建的图像是在一个具有足够空间的环境中创建的。

激光:激光是一个重要的元素。激光器将有必要产生相干光源。激光在空间上是相干的，因为它能够以非常窄的光束发射所需的光，而且它也能暂时连贯，因为它发出单一波长的光。这种相干性是产生全息图的必要条件。有必要确保激光的功率输出、光束极化、光束TEM模式和波长是全息图所需要的投影。物体的景深通常是由激光的相干长度决定的。

分束器:当单光束全息图不需要分束器,这将是必要的,当多束设置组织。分束器基本上将光束分为参考和对象束。它将有助于控制参考和对象梁之间存在的强度。

反射镜和透镜:定向镜是必要的指导和对象的引用。为了将激光束发散到一个更大的感光板中，在全息生产中可能需要一个发散透镜。抛物面梁可用于多波束传输(全新输入，2015年)。

英国论文代写：全息照相术

Holography works using the principle of interference. Beams of light when they interfere can cast a interference patterns. A hologram basically captures this interference pattern. The Holographic production system hence will have the source of light, the capturing or the recording medium and the material to view the hologram. The following are the needed components in producing a holographic system
Optical System: An optical system is needed in holography in order to ensure that ground vibrations do not change the image projections. It also acts as a substrate for the necessary mounts of the other elements of the holographic system.
Environment: The environment where the holography is being produced is most important. It should be in a place where light adjustments are possible. The room should be capable of being totally darkened if necessary. There must be adequate space to set the optical table and there must also be the needed space to investigate the projections. In the case of the Obi it is seen that the image floats that the Obi has created is created in an environment with adequate space.
Laser: The laser is an essential element here. A laser will be necessary to produce the coherent light sources. A laser is spatially coherent because it will be able to emit needed light in a very narrow beam and it also temporally coherent because it emits lights of single wavelength. This coherency is a must for producing a hologram. It is necessary to ensure that laser’s power output, beam polarization, beam TEM mode and wavelength are of the needed projections for hologram. The depth of the object scene is usually determined by the coherence length of the laser.
Beam splitter: While the single beam holograms do not require a beam splitter, this will be necessary when multi beam setups are organized. The beam splitter will basically split the beam as the reference and the object beam. It will help control the intensity that will exist between the reference and the object beam.
Mirrors and Lenses: Directional mirrors are necessary for directing the reference and the object beam. A diverging lens might be needed in the holography production in order to diverge the laser beam into a wider photographic plate. Parabolic beams can be used with multi beam transmissions (Holocenter, 2015).