A hologram is a science involving light rays that are reflected from an object that appears to be three dimensional. Holograms are used in various aspects of our lives for different things.
Such as entertainment, security purposes, education, defense, education, and the retail industry.
If you choose entertainment for example you must have seen them in movies for example Star Wars and Iron Man.
Holograms have been used for different purposes as mentioned above.
And there are different types of holograms too that are used depending on the type of industry. And how they are being used for.
How does a hologram give us the impression of 3-D changing orientation images?
There are a few aspects of holography that are needed. Let’s start with the basic steps so that you can have a clear idea of how a holographic image is created.
The first thing that you need to create a hologram is an object itself. The second is the use of various types of monochromatic laser beams that must fall on the object. You can use one type of monochromatic laser or various types of laser too.
However, you need a recording medium on which the images or the reflected light must fall and clear environment for the various double reflected beams to intersect with one another.
This is how a hologram works
If you don’t have too much idea about the coherent interference of light and phase differences in light waves.
This might be a bit tough to understand although we will try and make the things as far as easy as possible. To create a holographic 3-D virtual image. You need a laser beam that is split into two halves.
One half of the laser beam is allowed to fall on the surface of the object while the other half of the beam is allowed to fall on the recording medium or photographic plate.
The light beams that are falling on the object are called illumination beam or object beam. The other beams that are allowed to fall on the recording. Medium is called the referenced beam.
Now, some parts of the object beams get reflected off the surface of the image and while the reference beams are reflected from the recording medium.
It is the coherent interference of these beams that results in the formation of a 3D virtual images which appear as hologram images.
The recording medium is made from various substances generally glass which is coated with a photo resistant material.
What the future beholds for holograms?
Holograms are being used in various aspects of life nowadays. But it is believed that the future of hologram holds much more. In various facets of life which will almost revolutionize the world, we live in.
Holograms are being used but there is a real untapped potential for this branch of photoscience which is waiting to be unlocked in the future.
Here are some ways in which you could define a hologram to change our future applications and uses-
Holograms have real potential in the world of improving defense mechanisms. Scientists and research organizations are seeing the new scope of improvement.
In the geological maps which can be utilized by the military for its intelligence purposes.
The computer or satellite images of terrain will be transformed into a hologram-like image. This will help the military to view the map in a virtual 3-D.
Which will be quite helpful in organizing plans during a battle or a hostage rescue operation. This will also be easier for storage and transformation.
Scientists and research agencies are working all around the world to find a solution or an alternative to physical devices for the storage of information.
Think about this, don’t you think that your pen drives, disc drives, CDs and DVDs are too costly but hold too limited information in them. Also, they get corrupted after a few years thus rendering them useless.
With a hologram type storage mechanism the light beams can capture this information and can be used to store them into holographic films.
This way there will be big chunks of information and data that can be stored in them.
Use in the medical industry
The medical research filed will also benefit from the betterment of holographic technology. Think about this- this new improved version of the technology will be useful for the surgeons.
Trainee medical students to view the inside of the patient’s body in a 3-D virtual form.
This will help young students to learn various things about surgeries in a very interactive way. 3-D holographic images will portray almost a real replica of an image inside our body.
They can examine the different body parts, internal structures in detail, and see the minute problems with better visibility.
This is already being used in high-end surgeries where the doctors make the patient undergo various laser scans.
To make hologram images of the patient’s internal body parts and systems such as the skeletal system, nervous system, vascular system, etc.