Physics Lab Equipment

LEAI-22 Integrated Experimental System of Faraday and Zeeman Effects

LEAI-22 Integrated Experimental System of Faraday and Zeeman Effects

Features

  • Transverse and longitudinal Zeeman effects

  • Integrated system for both Faraday and Zeeman effects

  • High accuracy Teslameter included

  • Optional CCD camera with analysis software for Windows 7/8/10, 32/64-bit computers








Introduction

This LEAI-22 experimental system of Faraday and Zeeman effects consists of a main controller unit (including Teslameter, optical power meter, etc.), an electromagnet with a rotation stage, a He-Ne laser with power supply, a pencil Mercury lamp, focusing/imaging lenses, an interference optical filter, a F-P etalon, a polarizer, a photodetector, a direct reading microscope with optional CCD camera, USB image acquisition box, and analysis software. It is an ideal experimental instrument for advanced physics laboratories.

 

Using this instrument, the following experiments can be conducted:

 

1. Observe Zeeman effect, and understand atomic magnetic moment and spatial quantization

2. Observe the splitting and the polarization of a Mercury atomic spectral line at 546.1 nm

3. Calculate electron charge-mass ratio based on Zeeman splitting amount

4. Learn how to adjust a Fabry-Perot etalon and apply a CCD device in spectroscopy

5. Measure magnetic field intensity using a Teslameter, and determine magnetic field distribution

6. Observe Faraday effect, and measure Verdet constant using light extinction method


Specifications

ItemSpecifications
ElectromagnetB<1400 mT; pole spacing: 8 mm; pole dia: 30 mm: axial aperture: 3 mm
Power supply5 A/30 V (max)
He-Ne laser1.5 mW@632.8 nm; linearly polarized
Etalondia: 40 mm; L (air)= 2 mm; passband:>100 nm; R=95%; flatness:< λ/30
Teslameterrange: 0-1999 mT; resolution: 1 mT
Pencil mercury lampemitter diameter: 6.5 mm; power: 3 W
Interference optical filterCWL: 546.1 nm; half passband: 8 nm; aperture: 19 mm
Direct reading microscopemagnification: 20 X; range: 8 mm; resolution: 0.01 mm
Lensescollimating: dia 34 mm; imaging: dia 30 mm, f=157 mm


Parts List

DescriptionQty
Main Machine Unit1
He-Ne Laser with Support1
Magneto-optic Material Sample1
Pencil Mercury Lamp1
Mercury Lamp Adjustment Arm1
Milli-Teslameter Probe1
Mechanical Rail1
Carrier Slide6
Power Supply of Electromagnet1
Electromagnet1
Condensing Lens1
Interference Filter1
F-P Etalon1
Polarizer with Scale Disk1
Quarter-Wave Plate1
Imaging Lens1
Direct Reading Microscope1
Power Cord1
CCD, USB Interface & Software1 set (optional)

    Zeeman Effect Apparatus.png

Schematic of transverse Zeeman effect

1. Magnet                    2. Mercury lamp

3. Condensing lens     4. Filter 

5. F-P etalon               6. Polarizer 

7. Imaging lens           8. Microscope


   LEAI-22 Experimental System-1.jpg

Fringes after applying magnetic field

   LEAI-22-Faraday-s.jpg

Setup for Faraday effect

   LEAI-22-longitudial-s.jpg

Setup for longitudinal Zeeman effect


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