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Related Concept Videos

The Electromagnetic Spectrum01:24

The Electromagnetic Spectrum

Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
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The Electromagnetic Spectrum

The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
The Wave Nature of Light02:12

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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
Electromagnetic Waves in Matter01:30

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Electromagnetic waves can travel in the vacuum as well as in matter. For example light, which is an electromagnetic wave, can travel through air, water, or glass.
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the medium, μ.
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Dual Nature of Electromagnetic (EM) Radiation01:10

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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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Millimeter waves: acoustic and electromagnetic.

Marvin C Ziskin1

  • 1Center for Biomedical Physics, Temple University Medical School, Philadelphia, Pennsylvania, USA. ziskin@temple.edu

Bioelectromagnetics
|August 29, 2012
PubMed
Summary
This summary is machine-generated.

Research shows low-intensity millimeter waves applied to skin trigger endogenous opioid release, leading to systemic pain relief. This bioeffects research explores therapeutic potential for millimeter wave therapy.

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Area of Science:

  • Bioelectromagnetics
  • Acoustic and Electromagnetic Waves
  • Biophysics

Background:

  • Extensive research conducted over 47 years on acoustic and electromagnetic millimeter waves.
  • Early work focused on diagnostic ultrasound imaging and safety.
  • Recent 21-year focus on electromagnetic millimeter waves and therapy mechanisms.

Purpose of the Study:

  • To summarize decades of research in acoustic and electromagnetic millimeter waves.
  • To investigate the mechanisms of millimeter wave therapy.
  • To highlight the potential of millimeter wave therapy for pain relief and other benefits.

Main Methods:

  • Investigated acoustic millimeter waves, including diagnostic ultrasound.
  • Explored electromagnetic millimeter waves and their therapeutic applications.
  • Demonstrated the physiological effects of low-intensity millimeter wave exposure on skin.

Main Results:

  • Local exposure of skin to low-intensity millimeter waves induces endogenous opioid release.
  • These opioids are transported via blood flow, producing systemic effects.
  • Observed pain relief and other beneficial effects attributed to this mechanism.

Conclusions:

  • Low-intensity millimeter wave therapy can stimulate the release of endogenous pain-relieving agents.
  • This mechanism offers a potential pathway for therapeutic applications, particularly in pain management.
  • Millimeter wave therapy, though established in some regions, warrants further investigation and adoption in Western medicine.