Zeeman effect principally relates numerous branches of physics. This single experiment is equivalent to many experiments. If there are magnetic fields present, the atomic energy levels are split into large number of levels and the spectral lines are split as well. This splitting is called the Zeeman effect.

The heart of the device is a spectrometer with CCD based imaging. The standard accessories include an electromagnet with variable power supply, gauss meter, mercury lamp with power supply, etc..

Zeemen effect, splitting of spectral lines under a magnetic field, has been widely acknowledged to be an important phenomena to be experimented by Physics students. It offers deep understanding in atomic physics and quantum mechanics as well as in optics and spectroscopy. Still, many of our physics courses do not include this experiment due to the difficulty in maintaining the conventional zeemen effect apparatus in a student laboratory.

Holmarc’s new CCD based Zeemen effect apparatus is a timely solution. Our apparatus makes the experiment simple to be performed. Equipment is easy to be maintained. The instrument makes use of green light from a common low pressure mercury lamp with the help of a precision Fabry Perot etalon for performing the experiment. CCD camera along with a computer capture the spectral splitting images from the etalon. A group of students can see the phenomena in real time on computer monitor. Students perform calculations and analysis using the images saved in the computer.

• Determination of electron charge/mass ratio from Zeeman effect and the calculation of energy shift due to the applied magnetic field.

► Mercury lamp is used as light source. No special and costly light sources like Cadmium lamp required. Zeemen effect from a common and familiar light source helps students to understand the phenomena better.

► A CCD camera is used to capture the real time image of spectrum from etalon and can be viewed from a computer monitor. The images saved in the computer at various magnetic fields are used for analysis and calculations.

► The equipment is easy to be maintained. All modules and components are locally available.