laser

A range of wavelengths within the electromagnetic spectrum is called __________.

Band (frequency band)

The parts of a molecule that give it color by absorbing certain wavelengths are known as __________.

Chromophores

A light therapy applicator with multiple diodes is referred to as __________.

Cluster probe

Light in which all waves are in phase with each other is called __________.

Coherent

The application of shortwave or microwave electromagnetic energy to produce heat within tissues is known as __________.

Diathermy

Light with parallel waves is described as __________.

Directional (collimated)

Light that spreads, the opposite of collimated, is termed __________.

Divergent

Radiation composed of electrical and magnetic fields that vary over time is called __________.

Electromagnetic radiation

The total amount of electromagnetic energy delivered over the entire treatment time is called __________.

Energy

The total amount of electromagnetic energy delivered per unit area over the entire treatment time is known as __________.

Energy density (fluence)

The number of waves per unit time, generally measured in hertz, is referred to as __________.

Frequency

A laser that heats and destroys tissue directly in beam and is used for surgery is known as __________.

Hot laser

Electromagnetic radiation that can penetrate cells and displace electrons from atoms is called __________.

Ionizing radiation

The acronym for light amplification by stimulated emission of radiation is __________.

Laser

A light source that uses semiconductor diode technology to produce laser light is called __________.

Laser diode

A semiconductor diode light source that produces relatively low-power light is referred to as __________.

Light-emitting diode (LED)

Application of laser light for therapeutic purposes is known as __________.

Low-level laser therapy (LLLT)

Cluster probes that may contain a number of diodes with a total combined power greater than 500 mW are known as __________.

LLLT cluster probes

Light of single frequency, wavelength, and color is described as __________.

Monochromatic

The rate of energy production is known as __________.

Power

The concentration of power per unit area is called __________.

Power density (irradiance)

Occurs when a photon hits an atom that is already excited, releasing a new identical photon, is termed __________.

Stimulated emission

A light source that produces high-power light in a narrow frequency range is known as __________.

Supraluminous diode (SLD)

Electromagnetic radiation with a wavelength from less than 290 to 400 nm is referred to as __________.

Ultraviolet (UV) radiation

The length of a wave of light from peak to peak is called __________.

Wavelength