Magnetic component, of electromagnetic radiation

In this final section, it is shown that the three magnetic field components of electromagnetic radiation in 0(3) electrodynamics are Beltrami vector fields, illustrating the fact that conventional Maxwell-Heaviside electrodynamics are incomplete. Therefore Beltrami electrodynamics can be regarded as foundational, structuring the vacuum fields of nature, and extending the point of view of Heaviside, who reduced the original Maxwell equations to their presently accepted textbook form. In this section, transverse plane waves are shown to be solenoidal, complex lamellar, and Beltrami, and to obey the Beltrami equation, of which B is an identically nonzero solution. In the Beltrami electrodynamics, therefore, the existence of the transverse 1 = implies that of , as in 0(3) electrodynamics. 

The interaction of electromagnetic radiation with matter can be explained using either the electric field or the magnetic field. For this reason, only the electric field component is shown in Figure 10.2. The oscillating electric field is described by a sine wave of the form... 

In the process of absorption or emission of infrared radiation involving transitions between two vibrational states the interaction is usually between the molecule and the electric, rather than the magnetic, component of the electromagnetic radiation (see Section 2.1). For this... 

Students will be familiar with the absorption or emission of electromagnetic radiation as the basis for spectroscopic methods. Electromagnetic radiation itself is perceived as mutually perpendicular oscillating electric and magnetic fields. The total energy of the radiation, which has a number of components, is determined by the relationship shown in equation 3.1 ... 

Light is a form of electromagnetic radiation, so called because it consists of an electric component and a magnetic component, which oscillate in mutually perpendicular directions and perpendicular to the direction of travel of the radiation through space (see Figure 7.1). 

Nuclear magnetic resonance spectroscopy is a complex technique that is used to determine the constituents of foods. This method makes use of the fact that some compounds contain certain atomic nuclei which can be identified from a nuclear magnetic resonance spectrum, which measures variations in frequency of electromagnetic radiation absorbed. It provides more specific and detailed information of the conformational structure of compoimds than, for example, NIRS but is more costly and requires more time and skUl on the part of the operator. For these reasons, it is more suited to research work and for cases in which the results from simpler spectroscopy techniques require further investigation. Nuclear magnetic resonance spectroscopy has been useful in the investigation of the soluble and structural components of forages. 

Microwave radiation consists of electric and magnetic components like other electromagnetic radiations. To describe and analyze interaction of electromagnetic radiation with microcapsules water suspension is a difficult task. These suspensions consist of a great number of charged polymer molecules and dipole water ones thus the electric field acts on dipole moments of molecules. It was established that irradiation of... 

Before we go any further, it is a useful exercise to remind ourselves of the fundamental properties of electromagnetic radiation. They are transverse waves, with perpendicular oscillating electronic and magnetic components, that travel at the speed of light, c, such that ... 

---