Complete Questions and Guide Answers
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1. Laser stands for what?
Answer: Light Amplification by
Stimulated
Emission of
Radiation
2. What is the distance measured in nanometers between two peaks or two
troughs known as?
Answer: Wavelength
3. Light of only one color & one specific wavelength is known as?
Answer: Monochromatic
4. Refraction is also known as what?
Answer: Transmission
,5. The process where by a newly created photon of light (generated through
amplification) acquires energy equal to the photons that created it is known
as?
Answer: Stimulated Emission
6. The states of equilibrium or middle state of light
Answer: Metastable State
7. Who theorized stimulated emission?
Answer: Albert Einstein
8. The part of the laser that contains the active medium is called?
Answer: Resinator cavity
9. What are the states of light in stimulated emission?
Answer: Ground State Excited State
Singlet State
Metastable State
10. Alexandrite laer is in the visible light spectrum at what wavelength?
Answer: 755 nm
11. The Nd:YAG laser falls in the invisible light spectrum with a wavelength of
what?
,Answer: 1064 nm
12. What type of wave is used in laser hair removal?
Answer: Pulsed wave
13. A chromophore is also know at what?
Answer: Target
14. The chromophore absorbs what?
Answer: Energy
15. Goggles worn by the patient and practitioner must be approved by which
group?
Answer: ANSI (American National Standard Institute) for Class 3B and Class 4 Lasers
16. Each laser wavelength is what to its machine?
Answer: Specific
17. What are the parameters when doing laser hair removal?
Answer: Wavelength Spot Size
Fluence
Pulse Width
, 18. Pulsed lasers allow for selective heating of specific targets, this is also known
as?
Answer: Selective Photothermolysis
19. The rate/amount of energy delivered within a given area is known as?
Answer: Fluence
20. An increase in fluence equals an increase in what?
Answer: Heat. Resulting in more damage
21. The length of time the light/energy is in contact with the target that is
measured in milliseconds (ms)
Answer: Pulse width/Pulse duration
22. If the time of pulse duration is changed from milliseconds to nanoseconds
the laser is what?
Answer: Q Switched
23. A Q switched laser is used for what?
Answer: Tattoo removal
24. Which skin types can tolerate an Alex laser?
Answer: 1-4
25. Which skin types can tolerate a Nd:YAG laser?