P6.2.7.3 Observing the normal Zeeman effect in transverse and longitudinal configuration - spectroscopy using a Fabry-Perot etalon
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Observing the Normal Zeeman Effect in Transverse and Longitudinal Configuration - Spectroscopy using a Fabry-Perot etalon
In the experiment P6.2.7.3, the Zeeman effect is observed at the red cadmium line perpendicular and parallel to the magnetic field, and the polarization state of the individual Zeeman components is determined. The observations are explained on the basis of the radiating characteristic of dipole radiation. The so-called π component corresponds to a Hertzian dipole oscillating parallel to the magnetic field, i.e. it cannot be observed parallel to the magnetic field and radiates linearly polarized light perpendicular to the magnetic field. Each of the two σ components corresponds to two dipoles oscillating perpendicular to each other with a phase differential of 90°. They radiate circularly polarized light in the direction of the magnetic field and linearly polarized light parallel to it.
Components of experiment:
| 1 | 451 12 | Spectral lamp, Cd, with holding plate |
| 1 | 451 30 | Universal choke, 230 V, 50 Hz |
| 1 | 562 11 | U-core with yoke |
| 2 | 562 131 | Coil, 480 turns, 10 A |
| 1 | 560 315 | Pole pieces with large bore, pair |
| 1 | 521 551 | AC/DC power supply 0...24 V/0...10 A |
| 1 | 471 221 | Fabry-Perot etalon mirror, in holder |
| 2 | 460 08 | Lens in frame, f=150 mm |
| 1 | 472 601 | Quarter-wavelength plate, 140 nm |
| 1 | 472 401 | Polarisation filter |
| 1 | 468 41 | Holder for interference filters |
| 1 | 468 400 | Interference filter, 644 nm |
| 1 | 460 135 | Ocular with scale |
| 1 | 460 32 | Optical bench with standardised profile, 1 m |
| 1 | 460 381 | Rider base with thread |
| 7 | 460 373 | Optics rider, 60/50 |
| 1 | 501 30 | Connecting lead, 32 A, 100 cm, red |
| 2 | 501 31 | Connecting lead, 32 A, 100 cm, blue |
