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Demonstrate the influence of a magnetic field on light emitted as a gas discharge in the mercury green line at 545.1 nm. To determine e/m from optical measurements, students must be familiar with optics, electromagnetism, and quantum physics. Includes 1.0-T electromagnet, mercury lamp, interference filter and lens, 2.0-mm gap Fabry-Pérot etalon, CCD camera with computer capture card (user installation required), evaluation software, and instructions. PC and SDHC are needed but not supplied.

Advanced physics items are drop shipped. These products are built to order. Carolina does not hold stock. Please allow 90 days to receive your item from the time you place your order. This is the industry standard for this type of equipment.

Designed for modern physics labs at colleges and universities, this apparatus demonstrates the influence of a magnetic field on light emitted in a gas discharge, the Zeeman effect, and shows the quantum nature of light and the behavior of electrons in atoms emitting light. Experiments are recommended for advanced and college-level physics.

The spectral line observed is the green line of mercury at 546.1 nm, which splits into 9 components. When the lines are observed perpendicular to the magnetic field direction, all 9 components will be visible.

The included instruction manual contains sample activities and sample data.

Important: The magnet and power supply weigh about 80 lb. To accommodate the setup and computer, a space of about 7-1/2 x 2-1/2 ft (2 x 0.75 m) is needed.

About the camera: Due to rapid changes in camera models, the photo may not reflect the appearance of the supplied camera. Appropriate changes have been made to the setup instructions. For this reason the specifications for the camera are not provided.

The supplied software allows you to save the captured pattern in either .BMP or .JPG formats.

Specifications:
Lamp: Mercury discharge lamp, slim design, AC, 1,500 V_p-p, 5 W
Observed Emission Line: ³S₁ (6s7s)—⁵P₂ (6s7s) at 546.1 nm
Electromagnet: Built-in current-controlled power supply, 90-V DC, 0.5 to 1.4 A, with analog ammeter
Magnet rotatable 90° for transverse or longitudinal viewing
Maximum Magnetic Field at Lamp Position: 1.3 T
Fabry-Pérot Etalon: Aperture: 40 mm
Separation of Quartz Plates: 2.0 mm
Central Wavelength: 589.3 nm
Resolution λ/δλ: ≥2 x 10⁵
High-Reflection Bandwidth: 100 nm
Interference Filter: Central Wavelength: 546.1 nm
Transmission Bandwidth: ≤10 nm
Peak Transmission: ≥50%
Collimating Lens: Aperture: 37 mm
Focal Length: 110 mm
Environmental: Operating Limits: 0 to 40° C (32 to 104° F), relative humidity 35% to 80%
Choose a location free from vibration or electromagnetic interference
Power Input: 110-V AC, 60 Hz, 190 W
Dimensions: 2 x 0.75 m (7-1/2 x 2-1/2 ft) (to accommodate setup and computer)
Weight: 36.4 kg (80 lb)