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Lasers are based on the phenomeon that when you give an atom specific energy, and some photon with some specific energy hits it, the atom will release a photon with the same wavelength and in synchrony as the one who hit him, plus the 1st photon, unchanged.
More scientifically speaking:
Lasers are composed of:
1) emission medium, which is the material whose atoms will get excited and release photons;
2) optical cavity, that will reflect the photons back and forth producing the phenomenom called stimulated emission, and let some of the rays escape (visible laser rays);
3) power source, that give energy to the atoms so their electrons become excited.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoLasers play a pivotal role in our everyday lives. You'll find them in everything from CD players to dental drills to high-speed metal cutting mac hines to measuring systems. Tattoo removal, hair replacement, eye surgery they all use lasers.
Lasers are possible because of the way light interacts with electrons. Electrons exist at specific energy levels or states characteristic of that particular atom or molecule. The energy levels can be imagined as rings or orbits around a nucleus. Electrons in outer rings are at higher energy levels than those in inner rings. Electrons can be bumped up to higher energy levels by the injection of energy-for example, by a flash of light. When an electron drops from an outer to an inner level, "excess" energy is given off as light. The wavelength or color of the emitted light is precisely related to the amount of energy released.
Wiki User
∙ 12y agoThere is a link below that has a full description.
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How does a laser beam garage door work?
A laser beam garage door opener works when the beam is broken by a vehicle or an opener is activated. The activator opens the door.
Is laser a device that strengthens sound?
No, it works on electro magnetic radiation.
How does a bar code laser scanner work?
A bar code laser scanner works by shining a bright light (laser light) at the barcode and measuring the reflected beam. In order to scan the entire barcode very quickly, the light is bounced off a spinning disk to cover the entire barcode in one pass.
What type of laser is a thor laser?
Low level laser also referred to as a cold laser.
How does laser light detection works by?
A laser can detect the distance of an object as well as an object's reflectance, or intensity. To detect the distance of the laser source to a particular object, the round trip travel times of a laser pulse are accurately measured and recorded from the source, to the target and back. Since the speed of the laser pulse is known, using the formula distance = velocity * time, the distance can be calculated. Laser sensors can also record the amount of light returned from a target surface, which is characterized by its reflection coefficient and its surface properties. For example snow would be the highest reflectance and asphalt would be one of the lowest.
How is a laser printer used?
It works throug laser
How does the laser works?
The laser works by reflecting and amplifying a beam of light through a tube of mirrors.
Where is it possible to learn about laser systems?
You can learn about laser systems at Universal Laser Systems, Palomar, Laser Learning, Laser Star, E Science News, Lensar, CMS Laser, How Stuff Works and Telesis.
How does a CD-ROM work?
CD-ROM works on the principle of the LASER and it is a major application of the LASER
Was Albert Einstein the first one to invent the laser?
Einstein did not invent a laser. His works in physics laid the foundation for the developement of the laser however.
How does varicose vein laser treatment work?
Laser therapy is one means of treating varicose veins. The laser works to destroy and damage the vein. The laser closes the vein preventing it from spreading further.
Where can one find information on how laser eye surgery works?
Information about laser eye surgery can be found at All About Vision, Visualase and Eye Care America. The laser surgery and health section of How Stuff Works has several tutorials and frequently asked questions about the procedure.
What is the function of laser combs?
A laser comb is used to stimulate hair growth. It works on the function of phototherapy and uses a laser frequency concentrated on your head to increase the blood flow to your scalp.
Can i connect the Lexmark E120N Laser Printer to my wireless network?
yes you can connect the Lexmark E120N Laser Printer to your wireless network, it works great.
How does the laser ranging device work?
A laser-rang device works by using a laser beam to find horizontal fault movements. It can also use the laser beam to travel to a reflector and then back. Thus, the device can detect any change in distance to the reflector.
Where can one view an Optimax laser?
If you are a candidate for laser eye surgery, it is common to be concerned about the laser. While you can certainly view images online, ask your optometrist or laser eye professional if you can view an Optimax laser in person. Seeing one up close and asking how it works might ease your fears.
What is laser eiplation used for?
Laser epilation is used for the removal of hair. Laser hair removal has been around since the mid 1990's , and is growing in popularity due to it's speed and how well it works.
