Characteristics of Laser Light Flashcards
Spot Size?
Width of the laser beam.
It is the measure of the diameter of the beam that is in contact with the tissue.
TEM Mode?
Indicates how focused the beam is.
Reflection?
The process in which a part of the laser light is rejected by a flat, shiny surface as a mirror, jewelry or instrumentation.
Joules?
Units of energy of work?
Transmission?
Depends on the wavelength of the light.
Scatter?
The physical process that’s causes the laser beam to deflect in some new directions.
Pulse duration?
Length of the individual pulse of light, measured in milliseconds.
Fluence?
Energy delivered to the tissue by pulsed laser. (J/cm2)
TRT?
The amount of time takes a chromophore, after heating, to return to its normal temperature, by diffusion.
Absorption?
The physical process in which a part of the energy of the laser is attracted to a chromophore
And converted into either heat, acoustic response, chemical reaction or cellular stimulation.
Power Density?
Energy delivered to tissue by a continuous laser (W/cm2).
Selective Photothermolysis?
Controlling or light to create heat to distinct but surrounding tissue remains intact.
