Laser: How its Work, Characteristics, Uses and its Applications

 History of Laser:

The first Laser was constructed by Theodore Maiman in 1960. At the place of the Hughes Research Laboratories as normally this is based on Theoretical work. 

Lasers

What is a Laser?

The word Laser stands for Light Amplification by Stimulated  Emission of Radiation. The device emits light across a procedure of optical amplification that is based on electromagnetic radiation and stimulated emission. This is an unusual light source. Moreover, this is slightly different from flashlights and light bulbs. The narrow beam of light is produced by Laser.

How Its Work?

As with waves light travels, and in between the peaks of a wave the distance is called Wavelength. 

Wavelength of laser

It has different wavelengths in every color of light. For instance, blue light has a smaller wavelength than that of red light. Sunlight and some form of light are typically associated with the Lightbulb. Its wavelength is also different. When we see with our eyes that is the wavelength mixture like white light.

Different laser ocures. But in nature, Laser does not occur. This special type of light we create artificially. Lasers generate a narrow beam of light where all waves of light have the same wavelength. So these light waves travel together with peaks all of these that are in phase or lined up. Due to this reason, beams are very bright, and narrow, and on the tiny spot it focused. 

This type of laser is not spread but they focus at a particular point. And travel very long distances. In the small area, all this focuses or concentrates with a lot of energy. 

Characteristics of Lasers:

We divide the characteristics of Laser into four categories:

• Superior Monochromatism
• Superior Coherence
• Superior Directivity
• High Output

The characteristics of Laser are used in several fields like as defence and optical communication. 

Uses of Laser:

• When firstly the Laser was invented this is known as a solution looking for a problem. They are ubiquitous and used in several applications for various purposes. 
• In industries Cutting tools that use CO2 Laser are mostly used in them. It is easy, and precise, unlike knives, and does not require sharpening.
• Laser Spectroscopy.
• This is used in the Laser finding Range and Surveying.

Applications of Laser:

Important applications of Laser are:

1. Lasers in Industries
2. Lasers in Medicine
3. Lasers in Military
4. Lasers in Astronomy
5. Lasers in Holograpy
6. Lasers in Ranging
7. Lasers in Chemistry
8. Lasers in Biology
9. Atmospheric Optics
10. Lasers in Communications

1. Lasers in Industeis:

Lasers are used in electronic industries. This is used for trimming the components of Integrated Circuits, quartz, and cut glass. In addition, it is used automotive industry for heat treatment. For the photolithography, the ultraviolet lasers are utilized in the semiconductor industries. 

2. Lasers in Medicine:

To destroy kidney stones Lasers are used. For the bloodless surgery, the Lasers are used. For therapy and cancer diagnosis the Lasers are used. To create plasma Lasers are used.

 And also for the production of chemical reactions Lasers are used. Tumors are successfully removed with the help of Lasers. In addition for eye lens curvature correction, the Laser is used.

3. Lasers in Military:

In LIDAR to correctly measure the distance to an object, Laser light is used. To determine the distance of an object is also found with the help of laser range finders. To dispose of the energy of a warhead by harming the missile for this purpose the Laser is used. 

4. Lasers in Astronomy:

In radio telescopes to interchange and increase their range of observation and i9n amplification of quick faint radio signals from space, Lasers are very useful for this purpose. Generally,  the recording of the burst of light and from the star's radiation waves are used in the Lasers applications.

5. Lasers in Holography:

In holography spatial coherence and high monochromaticity are used as the properties of the Laser. It is a device for recording information from the three-dimensional object in a process in which the three-dimensional image is possibly reconstructed. Simultaneously the large number of bits are read and recorded in holographic memory. 

6. Lasers in Ranging:

In finding the correct position of a distant object and measuring the shape and size of your object and also its orientation Lasers are used. The velocity of moving objects we measure that are useful in Lasers. To monitor the remote environment Laser Fluouresensors are used.

7. Lasers in Chemistry:

In Chemistry are used in various ways we nextly discuss. Fabrication and Microelectronic designing. Photochemical reactions and triggering chemicals. The chemical bonds that exist in nature are also studied in the Laser. More for the separation of Isotopes is also included.

8. Lasers in Biology:

In biological and biomedical samples, Lasers are very useful in micro Raman analysis of spectroscopic. For obtaining the scattering spectra in a vast range of biological materials Argon-ion lasers are used for this purpose. 

9. Atmospheric Optics:

For remote examination of the atmosphere the Laser is used and for that it involves measurement of traces of temperature, water, pollutant gases, and vapor concentration, etc. For the distribution of atmospheric pollutants in several vertical sections laser radar is used because this provides.

10. Lasers in Communication:

In transmitting a large volume of signals above long distances lasers are very useful. The communication capacity of light is typically 10^6 or maybe greater rather than the typical microwaves. In communication with rocketry, Earth satellites, etc we use the Laser.

Conclusion of Laser:

As in above we completely discuss the Laser, its working, uses, and also its applications that we discuss.  Moreover, in nature, lasers do not exist then the other of the light that scatters or spreads the light. While Laser focus on the small area of the path they follow and are not spread.

HAPPY WITH LASER!

Frequently Asked Questions:

Q: What is Laser color and also why show this color?

Normally, starting about the 635-nanometer wavelength shows an orange-ish color. Simply, red-orange color is generated due to laser diodes are simply obtainable in these colors.

Q: In which country was the first laser created?

In California, the Hughes Research Laboratory first created the laser. 

Q: In Laser which color is more strong?

The blue and violet color is more strong in the spectrum than the green color.

Q: Do you know the disadvantages of a Laser?

Yes, I know that Laser cutting involves:

1. Fumes and dangerous gases
2. Material thickness it has limitations
3. Upfront price
4. Consumption of High-energy

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