The induced dipole
moment caused by the oscillating electric field
(ii) Using Newton's equation of motion, the induced dipole
oscillates harmonically and anharmonically with time under the action of the applied electric field and appropriate restoring and dissipation forces.
The dynamics of the induced dipole
orientation when applying the external electric field is analyzed with the electric modulus formalism and the following relationship,
Since the Raman activity is strongest for linear molecules with a center(s) of symmetry, capable of having an induced dipole
(not getting technical here; however, you could take a course in Group Theory, if you desire a better understanding), water, being both non-linear and containing a permanent dipole is nearly invisible in Raman.
When a polarizable blood cell (or particle) is exposed to an electric field, the particle polarizes, giving rise to an induced dipole
When subjected to an AC rotating electric field, the yeast is polarized and has an induced dipole
The resulting induced dipole
moment (either excess or net) of the scatterer will have only a z-component: m = [a.sub.z] [m.sub.z.]
Also, in response to electric fields, the charges in a neutral many-body particle may separate to form induced dipole
moments, which tend to align in the field; however this alignment is in competition with thermal effects.
Terms such as induced dipole
are becoming relevant, as they cause a brief electrostatic attraction between the two molecules.
Multiplying this induced dipole
by the a field with a linear gradient to produce a net force and balancing this force by the Stokes drag, the classical DEP theory produces a DEP velocity of the form
The effect of externally applied electric field on the energy levels, specific heat, absorption spectrum and induced dipole
moment of the impurity were studied in detail in the paper of Gomez et al (1967).