Equilibrium of random classical electromagnetic radiation in the presence of a nonrelativistic nonlinear electric dipole oscillator

1976 ◽  
Vol 13 (10) ◽  
pp. 2832-2845 ◽  
Author(s):  
Timothy H. Boyer
Author(s):  
J. Pierrus

This chapter begins by expressing the multipole expansion of the dynamic vector potential A ( r, t) in terms of electric and magnetic multipole moments. Differentiation of A ( r, t) leads directly to the fields E ( r, t) and B ( r, t), which have a component transporting energy away from the sources to infinity. This component is called electromagnetic radiation and it arises only when electric charges experience an acceleration. A range of questions deal with the various types of radiation, including electric dipole and magnetic dipole–electric quadrupole. Larmor’s formula is applied in both its non-relativistic and relativistic forms. Also considered are some applications involving antennas, antenna arrays and the scattering of radiation by a free electron.


2020 ◽  
Vol 88 (9) ◽  
pp. 693-703
Author(s):  
Masud Mansuripur ◽  
Per K. Jakobsen

1991 ◽  
Vol 152 (9) ◽  
pp. 467-471 ◽  
Author(s):  
A.G. Abrashkevich ◽  
D.G. Abrashkevich ◽  
M.I. Gaysak ◽  
V.I. Lendyel ◽  
I.V. Puzynin ◽  
...  

1987 ◽  
Vol 499 (6) ◽  
pp. 412-418 ◽  
Author(s):  
Th. M. El-Sherbini ◽  
A. A. Farrag ◽  
H. M. Mansour ◽  
A. A. Rahman

1972 ◽  
Vol 50 (12) ◽  
pp. 1363-1369 ◽  
Author(s):  
M. Cohen ◽  
R. P. McEachran

Electric dipole oscillator strengths (f values) have been calculated for a large number of singlet and triplet S–P, P–D, and D–F transitions in the helium isoelectronic sequence through O+6. The analytical orbital wave functions employed were of frozen-core type, and generally produce very good agreement between length and velocity values of the calculated oscillator strengths. A conspicuous exception occurs in many cases where the principal quantum number remains unchanged in the transition, and the more reliable dipole length values have been adopted for such transitions. The smooth variation of the calculated f values as functions of the inverse of the nuclear charge Z provided a sensitive check on the accuracy of the computations and indicated a considerable number of P–D transitions where the velocity values seemed the more reliable. Wherever comparison data are available, our calculated oscillator strengths are in excellent agreement with the most accurate values; in other cases, the absolute uncertainty in the f values should in no case exceed 5%.


Sign in / Sign up

Export Citation Format

Share Document