No. The length of coherence, though, is shortened. Through interference between laser rays in the tissue, very small "islands" of more intense light, called speckles occur. These speckles will be created as deep as the light reaches in the tissue and within a speckle volume, the light is partially polarized. It is easy to show that speckles are formed rather deep down in tissue and the existence of real speckles prove that the light is coherent.

Laser/light selectively targets the melanin in the hair so it is most effective on light, clean skin with dark follicles. After your initial preparation, your treatment provider will move a wand-like hand piece over your skin. The hand piece emits the light that disables the hair follicles. Most people perceive the light as a gentle "snapping" sensation. Once this is completed, the treatment provider will wipe away any loose hair from your skin, and you're ready to go.

On contact with tissue, a small amount of light is reflected, some is scattered and is transmitted through the tissue. But the vast majority is absorbed. On absorption into the tissue, the inported kinetic energy is converted to heat, which coagulates, ablates or cuts the tissue. The chromophore in the tissue determines what wavelength will be absorbed by the tissue.

Laser light causes five (5) actions on tissue, which have been documented as the basis for treatment benefits. They are listed below, summarized from medical and veterinary research articles. The articles can be purchased from http://www.ncbi.nih.gov/entrez/query.fcgi. The most common example of the conversion of light energy into chemical energy is photosynthesis, where plants manufacture food from carbon dioxide and water. Light energy from the sun is the essential item in that process.

The level of tissue penetration by the laser beam depends on its optical characteristics, as well as on the concentration and depth of the chromophores, which according to the wavelength are absorbed at different percentages. For instance, water absorbs almost 100 percent of the laser irradiation at the 10,600 nanometer wavelength, the wavelength of the CO2 gas laser. That is the reason why this type of laser wavelength is used in surgical applications.

Monochromatic non coherent light, such as light from LED's can be useful for superficial tissues such as wounds. In comparative studies, however, lasers have shown to be more effective than monochromatic non coherent light sources. Non coherent light will not be as effective in deeper areas.

The system emits a gentle beam of light that passes through the skin, to the hair follicle, where it is absorbed. Upon absorption, the energy is transformed into heat, which can disable the follicle, while leaving the surrounding tissue unharmed.

Laser Therapy or "photobiomodulation", is the use of specific wavelengths of light (red and near infrared) to create therapeutic effects. These effects include improved healing time, pain reduction, increased circulation and decreased swelling. Laser therapy adds energy to living systems. While we are able to explain many of its molecular and biochemical effects, it also adds energy at atomic and subatomic levels.

Light emitted from a laser diode is monochromatic (having only one wavelength), parrallel and coherent (having waves with similar direction, amplitude, and phase). These qualities make laser light much more valuable for therapeutic benefits.

Healing with the use of light is not new. Light therapy was reported to be effective for many conditions by Hippocrates. With the development of the laser and its special properties, using light as a treatment has gained more popularity. This is because we can now use specific wavelengths of light and jive accurately measured doses of energy directly to the appropriate treatment site, which was not possible with other light sources.

The doctor will direct the laser light to its target through a fiber optic. Fiber optics that are specially designed to conduct laser light are thin, flexible, transparent strands, something like fishing lines. In treating esophageal cancer the fiber optic is passed down the throat through an endoscope (a thin tube that is placed down your throat).

Yes, laser and light-based treatments have been used for many years for a variety of medical and cosmetic procedures. Candela, the most trusted name in the industry, has pioneered the development of some of the safest and most effective technologies and products available on the market today.

In general, most procedures have a low risk of adverse side effects. Some patients experience pigment changes in the skin color. If this occurs, the skin will typically return to normal pigmentation over time. All treatment results are individual.

The FDA approved the use of lasers for hair removal in 1995. Since then, numerous studies have been conducted and significant technological improvements have been made. Basically, hair removal devices now available today include: 694 nm ruby lasers, 755 nm alexandrite lasers, 805 nm diode lasers, 1064 nm lasers, and filtered xenon flashlamps.

Sunlight is a mixture of seven different colors, whereas Laser light is always of one single color (monochromatic). Sunlight is disorderly whereas laser beam is very orderly (coherent). Sunlight is not parallel whereas laser light runs parallel (collimated). The healing properties of Laser beam come from these differences.

A laser is a device that emits a special form of light. Laser light consists of light waves of a single wavelength in which all the waves reinforce one another, called COHERENCE. If you imagine heavy surf with large waves breaking on a beach instead of many small waves, you get a sense of COHERENT light. The term LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. Radiation in this case refers to the coherent light energy released, which produces the laser beam.