How does the ruby laser work?

How does the ruby laser work?

A ruby laser most often consists of a ruby rod that must be pumped with very high energy, usually from a flashtube, to achieve a population inversion. The rod is often placed between two mirrors, forming an optical cavity, which oscillate the light produced by the ruby’s fluorescence, causing stimulated emission.

What is the construction of ruby laser?

A ruby laser consists of three main parts: An active material ( or laser medium). A present and system made of two parallel plates with a reflecting coating applied on them. An exciting system usually made up of helical xenon. Flash tubes for achieving population inversion and a power supply source.

What is laser explain the working of ruby laser with diagram?

The pump source is the component of a ruby laser system that provides energy to the laser medium. Population inversion is required in this kind of laser to achieve laser efficiency To achieve population inversion, the laser medium must be supplied with energy. We use a flash tube as power source ruby laser.

What is ruby laser hair removal?

Ruby (694 nm) Laser Hair removal. This is the oldest type of laser used for hair removal purposes. It works best for light and fine hair types. It cannot be used on people with darker skin, and tanned skin. It is really suitable for those with fair or white skin.

What are the drawbacks of ruby laser?

Drawbacks of ruby laser

• As the terminus of laser action is the ground state, it is difficult to maintain the population inversion.
• The ruby laser requires high power pumping source.
• The laser output is not continuous but occurs in the form of pulses of microsecond duration.

What is the principle construction working and application of ruby laser?

The ruby laser is a three level solid-state laser. In a ruby laser, optical pumping technique is used to supply energy to the laser medium. Optical pumping is a technique in which light is used as energy source to raise electrons from lower energy level to the higher energy level.

What are its advantages over ruby laser?

➨They are economical. ➨Beam diameter of ruby laser is comparatively less than CO2 laser type. ➨Output power of ruby laser is not as less as He-Ne laser type. ➨Ruby is in solid form and hence there is no chance of wasting material of the active medium.

Why do you need cooling in ruby laser?

Explanation: A large amount of energy is dissipated in the ruby rod. Thus, it has to be cooled for efficient continuous operation.

What are ruby lasers used for?

The ruby laser is used only in the pulse mode. The radiation is not readily absorbed by water but is significantly absorbed by pigments such as melanin and hemoglobin. The ruby laser can easily penetrate the anterior structures of the eye. It is used to photocoagulate vascular and pigmented retinal lesions.

How long does ruby laser take to heal?

Recovery time was approximately 7 days, and a significant improvement in the freckles can be seen.

Which pumping method is used in ruby laser?

In a ruby laser, optical pumping technique is used to supply energy to the laser medium. Optical pumping is a technique in which light is used as energy source to raise electrons from lower energy level to the higher energy level.

What are the applications of ruby laser?

Some typical applications of ruby laser include the following: Laser metal working systems for drilling holes in hard materials. High-power systems for frequency doubling into the UV spectrum. High-brightness holographic camera systems with long coherent length.

Construction of Ruby Laser The ruby lazer consists of a ruby rod . which is made of chromium doped ruby material. At the opposite ends of this rod there are two silver polished mirrors. Whose one is fully polished and other is partially polished.

What is the percentage of CR in ruby laser?

For example pink Ruby contains 0.05% Cr atoms. The schematic diagram of ruby laser can be drawn as: The ruby lazer consists of a ruby rod . which is made of chromium doped ruby material. At the opposite ends of this rod there are two silver polished mirrors. Whose one is fully polished and other is partially polished.

What is the active material in ruby laser?

Ruby laser is a solid-state laser that was developed by Maiman in 1960 using Ruby as an active medium. Ruby is a crystal of Aluminium oxide. In which a part of the aluminum ion is substituted by chromium ion. The active material in the Ruby is chromium ion.

Is the output power of a ruby laser continuous?

The output power of the ruby laser is not continuous. But it is in the form of pulses of short duration. In other words, the ruby laser operates in pulse mode and hence called pulsed laser. It is all about the Ruby laser construction and working.