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Laser Technician Questions with Detailed
Verified Answers
What are the three properties of lasers that are not shared by
intense pulsed light (IPL)?
⼀Answer:⼀ 1. Lasers are monochromatic (IPL is polychromatic) 2.
Lasers have coherent energy (IPL is incoherent) 3. Lasers' energy is
collimated (IPL is divergent)
What does it mean that lasers are monochromatic and IPL is
polychromatic?
⼀Answer:⼀ Laser light contains 1 wavelength and 1 color, which
usually treats one chromophore. IPL targets multiple chromophores with
visible and infrared light
What does it mean that lasers have coherent energy and IPL is
incoherent?
⼀Answer:⼀ Laser light travels as a single unit of energy which is
precise and able to be manipulated. IPL can travel in different
directions causing forward and backward scatter
What does it mean that lasers energy is collimated and IPL is
divergent?
⼀Answer:⼀ Laser photons are parallel, the beam has minimal
divergence helping laser light to remain in phase for extended
distances. IPL has forward and backward scatter
What are the four laser tissue interactions?
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⼀Answer:⼀ 1. Absorption 2. Reflection 3. Transmission 4. Scattering
What is selective photo thermolysis?
⼀Answer:⼀ Targeting a specific chromophore with precise
wavelength of light and accurate duration of pulse for adequate
thermal energy (staying within TRT) to chromophore and maintaining
minimal to no damage to surrounding area
What is a LED device?
⼀Answer:⼀ Light emitting diode devices that are non-ablative, non-
thermal and stimulate Photo modulation in cells which triggers a bio
chemical response that speeds up cellular metabolism. This can help
suppress aging, speed healing, and reduce inflammation
Define the two types of radio frequency devices.
⼀Answer:⼀ Monopolar and bipolar. Monopolar devices use
electrical energy which creates resistance that is converted to heat and
exits body through dispersing electrode. Bipolar have electrical current
contained within handpiece by having opposite charges on opposite
ends.
What are the two principal aging processes?
⼀Answer:⼀ Extrinsic aging, intrinsic ageing. Intrinsic ageing is
genetics and gravity, extrinsic ageing this portion for which we are
responsible and external factors
What are the two main layers of the skin?
⼀Answer:⼀ Epidermis, dermis
What are GAGs?
Laser Technician Questions with Detailed
Verified Answers
What are the three properties of lasers that are not shared by
intense pulsed light (IPL)?
⼀Answer:⼀ 1. Lasers are monochromatic (IPL is polychromatic) 2.
Lasers have coherent energy (IPL is incoherent) 3. Lasers' energy is
collimated (IPL is divergent)
What does it mean that lasers are monochromatic and IPL is
polychromatic?
⼀Answer:⼀ Laser light contains 1 wavelength and 1 color, which
usually treats one chromophore. IPL targets multiple chromophores with
visible and infrared light
What does it mean that lasers have coherent energy and IPL is
incoherent?
⼀Answer:⼀ Laser light travels as a single unit of energy which is
precise and able to be manipulated. IPL can travel in different
directions causing forward and backward scatter
What does it mean that lasers energy is collimated and IPL is
divergent?
⼀Answer:⼀ Laser photons are parallel, the beam has minimal
divergence helping laser light to remain in phase for extended
distances. IPL has forward and backward scatter
What are the four laser tissue interactions?
, Page | 2
⼀Answer:⼀ 1. Absorption 2. Reflection 3. Transmission 4. Scattering
What is selective photo thermolysis?
⼀Answer:⼀ Targeting a specific chromophore with precise
wavelength of light and accurate duration of pulse for adequate
thermal energy (staying within TRT) to chromophore and maintaining
minimal to no damage to surrounding area
What is a LED device?
⼀Answer:⼀ Light emitting diode devices that are non-ablative, non-
thermal and stimulate Photo modulation in cells which triggers a bio
chemical response that speeds up cellular metabolism. This can help
suppress aging, speed healing, and reduce inflammation
Define the two types of radio frequency devices.
⼀Answer:⼀ Monopolar and bipolar. Monopolar devices use
electrical energy which creates resistance that is converted to heat and
exits body through dispersing electrode. Bipolar have electrical current
contained within handpiece by having opposite charges on opposite
ends.
What are the two principal aging processes?
⼀Answer:⼀ Extrinsic aging, intrinsic ageing. Intrinsic ageing is
genetics and gravity, extrinsic ageing this portion for which we are
responsible and external factors
What are the two main layers of the skin?
⼀Answer:⼀ Epidermis, dermis
What are GAGs?
