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