Flashcards in Laser ppt Deck (55)
What does LASER stand for
what is a device that controls the way energized atoms release photons
what are the 3 main properties of a laser that make if very different from other lights
what property of a laser is that it contains one specific wavelength of light (one specific color).
the wavelength of light is determined by what?
the amount of energy released when the electron drops to a lower orbit
what property of a laser describes how it is organized- thus each photon moves in step with the others, this means that all the photons have wave fronts that launch in univision
which laser property is that a laser light has a very tight beam and is very strong and concentrated
(a flashlight in contrast releases light in many directions, the light is very weak and diffuse)
Carbon dioxide laser properties (2)
marked with a helium-neon aiming beam
what is the Carbon dioxide laser used for
upper airway sx
is carbon dioxide laser common
Nd-YAG laser stand for what?
neodymium-yttrium aluminum-garnet laser
Nd-YAG laser properties (1)
short wave length allows transmission by fiberoptics
Nd-YAG laser is used for what sx's
distal tracheobronchial tree and retina sx
KTP laser stand for what?
KTP laser can be transmited by what?
KTP laser is used in what sx's
Argon Laser can be transmitted by what
Argon laser is used in what sx's
neurological, retinal, and otolaryngological
7 wavelengths in order of power (weakest to most powerful
with laser wavelengths longer wavelengths= what?
lower freq and lower energy
(all start with L)
with laser wavelengths shorter wavelengths= what?
higher freq and higher energy
(for jake sHorter= Higher and Higher) : )
frequancy is inversly proprtional to what??
the higher the frequency the smaller the wavelength
what has a higher freguency?
KTP Wave length is 532
Nd:YAG wave length 1064
freq is inversly proportional to wave length
the longer the wavelength the lower freq
which laser is for deep tissue? and why?
b/c of near infrared I guess????
what is the only laser that wet tissue can protect pt (like a wet towel)
what 2 lasers are absorbed by Hgb and melanin or other similar pigments? transmitted through clear substances.
tissue penetration 0.5-2 mm
which laser is more readily absorbed by dark tissue?
transmitted through clear fluids
tissue penetration 2-6 mm
which laser is strongly absorbed by water, and thus by all tissue, pigmented or not. tissue penetration <0.5mm
the greater the wavelength = the _______ absorption by water
CO2 greatest WL 10,600