What are the applications of laser in medical field?

What are the applications of laser in medical field?

Medical Applications. Lasers have been used for various medical procedures including dermatology, plastic surgery, wound healings, nerve stimulation, dentistry, ophthalmology and many other therapeutic and surgical procedures [1-17].

What are the common applications of diode lasers?

Laser diodes are the most common type of lasers produced, with a wide range of uses that include fiber optic communications, barcode readers, laser pointers, CD/DVD/Blu-ray disc reading/recording, laser printing, laser scanning and light beam illumination.

What type of pumping is used in diode laser?

Cooling can stabilize the diode laser frequency. There are basically two types of pump geometry, longitudinal pumping (pump beam enters the laser medium along the resonator axis) and transverse pumping (pump beam incident on the active medium from transverse directions to the resonator axis).

Which pumping mechanism is used in solid state laser?

optical pumping
Solid-state lasers use optical pumping by other lasers or lamps to produce a wide variety of laser devices.

What are the medical applications?

Medical applications (“apps”) for mobile devices such as smartphones and tablet computers provide healthcare professionals, patients, and the public with a growing number of specialized tools and resources.

What do you understand by solid state laser?

A solid-state laser is a laser that uses a gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. Semiconductor-based lasers are also in the solid state, but are generally considered as a separate class from solid-state lasers (see Laser diode).

Which are the pumping process?

1.4b) is called the pumping process. Usually it is performed in one of the following two ways: optically or electrically. In optical pumping the light from a powerful source is absorbed by the active material and the atoms are thereby pumped into the upper pump level.

Which of the following is an example of diode pumping?

Which of the following is an example of optical pumping? Explanation: The atoms of Ruby are excited with the help of photons emitted by an external optical source. The atoms absorb energy from photos and raises to excited state. Therefore Ruby laser is an example of optical pumping.

What are the different types of pumping system in laser?

Types of pumping:

• Optical pumping: which uses strong light source for excitation.
• Electrical pumping: which uses electron impact for excitation.
• Chemical pumping: which uses chemical reactions for excitation.
• Direct pumping: which uses direct conversion of electric energy into light energy.

Which one is the example of solid state laser?

Examples of different types of solid-state lasers are: Small diode-pumped Nd:YAG (→ YAG lasers) or Nd:YVO4 lasers (→ vanadate lasers) often operate with output powers between a few milliwatts (for miniature setups) and a few watts. Q-switched Nd:YAG lasers are still widely used in lamp-pumped versions…

What is the most powerful laser diode?

The LLNL laser diode arrays are the most powerful of their type ever built, producing an incredible 3.2 million watts of laser power (Photo: Damien Jemison/LLNL)

What is a pulsed laser diode?

Pulsed Laser Diodes. A laser diode is a laser where the active medium is a semiconductor similar to that found in a light-emitting diode. The most common and practical type of laser diode is formed from a p-n junction and powered by injected electric current.

What are solid state diodes?

A solid state diode is a two electrode device, ​ fabricated by fusing P-type and N-type materials. These materials are essentially doped semiconductors.

What is diode laser treatment?

Diode laser treatment uses laser light beams to target areas of hyperpigmentation or vascular blemishes. The laser works by heating the melanin or blood vessels causing the blemish to create controlled damage to the area. Surrounding tissue is left unharmed during the process due to the precision of the diode lasers.