laser unit 3

ionize

a process that leads to the dissociation of a neutral atom

lasing medium

substance that releases photons when excited

long pulse

lasers with light pulses of millisecond duration

q-switched

lasers with light pulses of nanosecond duration

pulsed lasers

lasers emitting light in the form of pulses

dye lasers

lasers based on liquid or solid dyes as gain media

optical cavity

component of laser that catches light energy

photon

a particle of light or other electromagnetic radiation

joule

unit of energy, ability to do work

watt

unit of power

ionization

the process of converting an atom by adding or removing charged particles such as electrons

invisible spectrum

white light from the sun is made of all colors

invisible spectrum

wavelengths from the sun that do not have color and cannot be seen by the human eye

wavelength

distance between each high and low

laser

an instrument that produces a powerful beam of light that can produce intense heat

3 parts of an atom

• nucleus = center

• protons and neutrons = inside nucleus

• lectrons = spin around nucleus

excited stage

the stage where electrons absorb a photon of light

laser beam is generated by _____

amplification

amplification

makes laser beam stronger/intense

non-ionizing

any type of radiation that does not carry enough energy to ionize atoms

non-mutating

mutations where effects do not influence the fitness of an individual