The word “laser” is an acronym for what?
Light Amplification by Stimulated Emission of Radiation
Light travels in units called what?
Photons
This U.S. agency regulates medical laser devices.
The FDA (Food and Drug Administration)
What is the target in the skin that absorbs laser energy?
Chromophore
This color LED is commonly used for acne treatments.
Blue light
Early laser technology was first developed in what decade?
The 60s
The distance between two peaks of a light wave
Wavelength
This agency sets workplace safety standards.
OSHA
The laser most often used for hair removal.
The diode laser
What color LED is used for collagen stimulation and anti-aging?
Red light
Lasers were first used in medicine for what types of procedures?
Dermatology and Ophthalmology
This determines the color of visible light.
Wavelength (nanometers)
Lasers are classified by risk according to what system?
The ANSI laser classification system
What does IPL stand for?
Intense Pulsed Light
Low-level light therapy is also known as this
Photobiomodulation
Estheticians use light-based devices primarily for what skin goals?
Hair removal, rejuvenation, and pigmentation correction
The depth of light penetration depends on this factor
Wavelength and energy
Estheticians must follow state laws, also called what?
Scope of practice
Unlike lasers, IPL emits what type of light?
Broad spectrum light
Near-infrared light penetrates deeper and helps with what?
Wound healing/pain reduction
IPL devices became popular in esthetics during this decade
The 90s
The principle that describes how certain chromophores absorb light.
Selective photothermolysis
The laser hazard classifications range from Class I to what?
Class IV
Radiofrequency devices use what type of energy?
Electrical energy converted into heat
LED treatments are considered what type of procedure?
Noninvasive