Laser Hair Removal Exam Questions Complete Answers New Update (100+ Verified A+)
what does the word LASER stand for? - Answers - light amplification stimulated emission of radiation
what are the four characteristics of a wave? - Answers - wavelength, frequency, velocity, amplitude
waveleng...
Laser Hair Removal Exam
Questions Complete Answers New
Update (100+ Verified A+)
what does the word LASER stand for? - Answers -✔✔ light amplification stimulated
emission of radiation
what are the four characteristics of a wave? - Answers -✔✔ wavelength, frequency,
velocity, amplitude
wavelength - Answers -✔✔ distance between 2 peaks of the wave measured in
nanometers
frequency - Answers -✔✔ number of wave cycles per second; measured in hertz
velocity - Answers -✔✔ speed of light
amplitude - Answers -✔✔ height of the wave
what is the common standard of measure used for a wavelength? - Answers -✔✔
nanometers
explain the correlation between the wavelength, energy, frequency, amplitude, and
penetration to the surface - Answers -✔✔ -shorter waves have more energy, higher
frequency, higher amplitudes, less penetration
-long waves have less energy, less frequency, less amplitudes, more penetration
what is the range for visible light? (nm) - Answers -✔✔ 400-780nm
what are actinic rays? - Answers -✔✔ damaging rays that come from the sun
what wavelengths are considered to be actinic? - Answers -✔✔ 0-400nm
what wavelengths for IR light? - Answers -✔✔ 780-10,000
what is spontaneous emission? - Answers -✔✔ process of energy absorption by
electrons and emitting spontaneously
what are the components of laser? - Answers -✔✔ active medium, excitation
mechanism, feedback mirrors, laser output
, what are 3 unique characteristics of the laser light? - Answers -✔✔ 1) monochromatic
2) coherant
3) collimated
coherence - Answers -✔✔ wave patterns are locked in one phase (up and down
together)
collimation - Answers -✔✔ laser that creates a light beam that stays together as a tight
beam of light over long distance without diverging
monochromaticity - Answers -✔✔ -one wavelength/color,
-same wavelength number, color
who were 3 people developing the theory of LASER? - Answers -✔✔ -albert einstein
-charlers townes
-arthur shawlow
who invented the first laser and when? - Answers -✔✔ -theodore maiman
-1960
in the visible spectrum, what is the color? - Answers -✔✔ wavelength
give the order of colors in the visible spectrum - Answers -✔✔ violet, indigo, blue,
green, yellow, orange, red
what is active medium of a laser? - Answers -✔✔ substance that creates the laser light
what types of active medium are commonly used? - Answers -✔✔ solid, liquid, gas,
electronic
what is the energy source of a LASER? - Answers -✔✔ stimulates active medium
types of the energy sources used in different lasers - Answers -✔✔ direct current, radio
frequency, optical (flashlight), other lasers
what conditions do we use lasers in esthetics for? - Answers -✔✔ -hair reducation
-hyperpigmentation
-skin rejuvenation
-spider veins
-stretch marks
-telangiectasia
-capillaries
-melasma
-tattoo removal
-acne
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