Laser

Question 1

Having only one frequency?

Answer 1

Monochromatic

Question 2

Non-divergent?

Answer 2

Collimated

Question 3

All waves in sync?

Answer 3

Coherent.

Question 4

What are wavelength dependent photoreceptors molecules?

Answer 4

Chromophores

Question 5

An increase in frequency= ____ wavelength

Answer 5

Decrease

Question 6

Longer wavelength (780-904 nm) have _____ absorbtion and ______ penetration?

Answer 6

Decreased

Increased (5 cm)

Question 7

Shorter wavelength (600-780 nm) have _____ absorbtion and ______ penetration?

Answer 7

Increased

Decreased (1 cm)

Question 8

Rate of energy flow?

Answer 8

Power

Question 9

Energy density measured in?

Answer 9

J/cm^2

Question 10

This light source has decreased intensity, is not monochromatic or coherent, and spreads.

Answer 10

LED

Question 11

This light source has increased intensity, is kind of monochromatic, but is not coherent?

Answer 11

SLD

Question 12

This light source is monochromatic and coherent

Answer 12

Laser

Question 13

Which light source is for large superficial?

Answer 13

LED

Question 14

Which light source is for superficial/deep?

Answer 14

SLD

Question 15

Which light source is for deep ?

Answer 15

LAser

Question 16

Power of laser

SLD

LED

Answer 16

5-500 mW

5-35

1-5

Question 17

<500 J, for therapy, enhance cellular function

Answer 17

Low level laser therapy

Question 18

> 500J, for surgery, cell destruction (thermall)

Answer 18

High level laser therapy.

Question 19

Photochemical interaction b/w photons and healthy cells around ST pathology?

Answer 19

Photobiomodulation

Question 20

What happens in photobiomodulation?

Answer 20

Light stimulated chromophores in mitochondria ^ ATP.

Question 21

What do you use before and after Laser?

Answer 21

Ice before

Heat, US, and estim after