Laser Flashcards
What is the acronym for laser?
Light amplification by stimulated emission of radiation
What is a laser?
-photonics system
-device that produces spatially & temporally coherent light radiation based on the process of stimulated emission
What are the two waves that electromagnetic radiation consists of?
- Electric field wave & magnetic field wave
What does IPL stand for?
Intense pulsed light
Typical lasers in use?
Nd: YAG
Diode
Alexandrite
Side effects of laser
-pain
-bruising & swelling
-redness & inflammation
-blistering
-herpes simplex outbreaks & bacterial infections
Etc…
What are the cooling mechanisms that Lasers use?
- ice
-gels
-cold glass containers
-very low temperature sprays
-cold airflow
Biological targets at greatest risk are?
-eyes
-skin
-combustible materials causing a fire
Most important equipment needed to operate a laser?
Protective Eyewear for the client & yourself ( must have side & top guards that fit sinfully around the nose)
Most important factor in selecting operator protective eyewear is?
Must protect against the wavelength emitted by the laser. Protective eyewear must be labelled with the same wavelength that is emitted by the laser.
FDA classifications
-Class 1- doesn’t damage the eye. CD players & laser printers
-Class 2- output can be high as 1mW. Lasers that emit visible light( most laser pointers)
-Class 3- does not exceed 5 mW. (Many firearm laser sights & laser pointers )
-Class 4- can cause damage to the eye. Lasers powered 5 mW & 500 mW. Therapeutic lasers
-Class 5- have an out power of more than 500 mW. Can cause serious and permanent damage to eyes or skin. Most industrial, scientific,military & medical lasers
Diode laser
-equipped with bars of several square centimetre, against a laser beam of barely 1 c/m in diameter for the Alexandrite laser.
-coverage will be much larger & faster
- does not correspond in a privileged way to melanin
- hair destruction performance is less effective
- poorly equipped to reduce pain( treatment is quick,less effective & relatively painful
Alexandrite
- class 4 laser
-produces through it’s mechanical system of mirrors, stones & a red laser beam whose main characteristic is to target melanin & deliver heat to destroy the hair bulb
-skin types I-IV
-cannot be used on dark or matte skin
YAG laser
-Treats photo types up to IV
-delivers a light beam at the wavelength of 1064 nm with greater skin penetration
Treatment is slightly more painful but great for deeply implanted hairs
Difference between laser & IPL?
-laser consists of 1 wavelength or color of light all going in one direction creating a single beam like a laser point.
IPL produces wide range of wavelengths of light to produce a single white flash.
