ELECTROLYSIS STATE REVIEW
REVIEW SHEET 2026 FULL
QUESTIONS AND ACCURATE
ANSWERS
◉ What is the distance measured in nanometers between two peaks or
two troughs known as? Answer: Wavelength
◉ Light of only one color & one specific wavelength is known as?
Answer: Monochromatic
◉ Refraction is also known as what? Answer: Transmission
◉ 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
◉ The states of equilibrium or middle state of light Answer: Metastable
State
◉ Who theorized stimulated emission? Answer: Albert Einstein
◉ The part of the laser that contains the active medium is called?
Answer: Resinator cavity
,◉ What are the states of light in stimulated emission? Answer: Ground
State
Excited State
Singlet State
Metastable State
◉ Alexandrite laer is in the visible light spectrum at what wavelength?
Answer: 755 nm
◉ The Nd:YAG laser falls in the invisible light spectrum with a
wavelength of what? Answer: 1064 nm
◉ What type of wave is used in laser hair removal? Answer: Pulsed
wave
◉ A chromophore is also know at what? Answer: Target
◉ The chromophore absorbs what? Answer: Energy
◉ 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
◉ Each laser wavelength is what to its machine? Answer: Specific
,◉ What are the parameters when doing laser hair removal? Answer:
Wavelength
Spot Size
Fluence
Pulse Width
◉ Pulsed lasers allow for selective heating of specific targets, this is also
known as? Answer: Selective Photothermolysis
◉ The rate/amount of energy delivered within a given area is known as?
Answer: Fluence
◉ An increase in fluence equals an increase in what? Answer: Heat.
Resulting in more damage
◉ The length of time the light/energy is in contact with the target that is
measured in milliseconds (ms): Answer: Pulse width/Pulse duration
◉ If the time of pulse duration is changed from milliseconds to
nanoseconds the laser is what? Answer: Q Switched
◉ A Q switched laser is used for what? Answer: Tattoo removal
◉ Which skin types can tolerate an Alex laser? Answer: 1-4
, ◉ Which skin types can tolerate a Nd:YAG laser? Answer: All skin
types
◉ Which skin type should only have electrolysis and no laser? Answer:
Type 1
◉ If the pulse width is greater than the thermal relaxation time it results
in? Answer: A burn
◉ If the pulse width is less than or equal to the thermal relaxation time it
results in? Answer: Perfect hair removal
◉ Larger structures have __________ thermal relaxation times (TRT)
Answer: Longer
◉ Smaller structures have _______ thermal relaxation times (TRT)
Answer: Shorter
◉ What kind of pulse widths protect the epidermis, penetrate deeper and
cool more slowly? Answer: Long
◉ Longer pulse widths are for what skin type? Answer: 4-6
REVIEW SHEET 2026 FULL
QUESTIONS AND ACCURATE
ANSWERS
◉ What is the distance measured in nanometers between two peaks or
two troughs known as? Answer: Wavelength
◉ Light of only one color & one specific wavelength is known as?
Answer: Monochromatic
◉ Refraction is also known as what? Answer: Transmission
◉ 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
◉ The states of equilibrium or middle state of light Answer: Metastable
State
◉ Who theorized stimulated emission? Answer: Albert Einstein
◉ The part of the laser that contains the active medium is called?
Answer: Resinator cavity
,◉ What are the states of light in stimulated emission? Answer: Ground
State
Excited State
Singlet State
Metastable State
◉ Alexandrite laer is in the visible light spectrum at what wavelength?
Answer: 755 nm
◉ The Nd:YAG laser falls in the invisible light spectrum with a
wavelength of what? Answer: 1064 nm
◉ What type of wave is used in laser hair removal? Answer: Pulsed
wave
◉ A chromophore is also know at what? Answer: Target
◉ The chromophore absorbs what? Answer: Energy
◉ 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
◉ Each laser wavelength is what to its machine? Answer: Specific
,◉ What are the parameters when doing laser hair removal? Answer:
Wavelength
Spot Size
Fluence
Pulse Width
◉ Pulsed lasers allow for selective heating of specific targets, this is also
known as? Answer: Selective Photothermolysis
◉ The rate/amount of energy delivered within a given area is known as?
Answer: Fluence
◉ An increase in fluence equals an increase in what? Answer: Heat.
Resulting in more damage
◉ The length of time the light/energy is in contact with the target that is
measured in milliseconds (ms): Answer: Pulse width/Pulse duration
◉ If the time of pulse duration is changed from milliseconds to
nanoseconds the laser is what? Answer: Q Switched
◉ A Q switched laser is used for what? Answer: Tattoo removal
◉ Which skin types can tolerate an Alex laser? Answer: 1-4
, ◉ Which skin types can tolerate a Nd:YAG laser? Answer: All skin
types
◉ Which skin type should only have electrolysis and no laser? Answer:
Type 1
◉ If the pulse width is greater than the thermal relaxation time it results
in? Answer: A burn
◉ If the pulse width is less than or equal to the thermal relaxation time it
results in? Answer: Perfect hair removal
◉ Larger structures have __________ thermal relaxation times (TRT)
Answer: Longer
◉ Smaller structures have _______ thermal relaxation times (TRT)
Answer: Shorter
◉ What kind of pulse widths protect the epidermis, penetrate deeper and
cool more slowly? Answer: Long
◉ Longer pulse widths are for what skin type? Answer: 4-6
