Modern Interferometry advanced level Physics Experiments

This Research-Grade Interferometry Kit is designed for advanced and intermediate physics laboratories to study the principles of optical interferometry through hands-on experimentation. The modular system enables students to construct and investigate Michelson, Sagnac, and Mach-Zehnder interferometers while performing highly accurate measurements of displacement, optical path differences, and material properties. The kit supports a wide range of educational and research applications with exceptional mechanical stability and precise optical alignment. Physics Lab Experiments from Atico Exports.

• Measurement of wavelength of light
• Thermal expansion studies
• Magnetostriction analysis
• Electro-optic effect investigations
• Piezoelectric deformation measurement
• Refractive index determination of gases and transparent solids
• White-light interferometry
• Precision displacement measurement
• Optical interference demonstrations
• Advanced optics and photonics experiments

Instrument Components :

• Rigid optical breadboard with stiffening ribs
• Precision mirror mounts
• Flexure translation stage with differential micrometer
• Motor drive for automated translation
• Optical detectors
• Electronic controller for fringe counting
• He-Ne laser
• 650 nm adjustable-focus diode laser
• Halogen lamp
• Red/green LED light source
• Polarizing beam-splitting cubes
• Dielectric beam splitters
• Metal-film beam splitters
• Quartz phase shifters
• Glass phase shifters
• Optical lenses
• Filter holders
• Lens holders
• Alignment tools
• Standard optical component supports
• Gas handling manifold
• Precision gas cell
• Electronic pressure transducer
• Piezoelectric actuator
• Sample rotation stage
• Heating coils
• Temperature sensors
• Polarizing elements

Experiments :

Michelson Configuration

• Introduction to interferometer setup
• Wavelength measurement using a micrometer
• Refractive index measurement of gases
• Refractive index measurement of transparent solids
• Destructive interference and energy distribution
• Quadrature detection
• Magnetostriction measurements
• Thermal expansion studies
• Piezoelectric material deformation
• White-light interferometry
• Thickness measurement of solid samples

Sagnac Configuration

• Interferometer alignment
• Electro-optic effect measurement
• Polarimetric detection
• Common-mode vibration rejection studies
• Refractive index measurement
• Additional Sagnac-based investigations

Mach-Zehnder Configuration

• Interferometer construction
• Polarization experiments
• Optical testing
• Quantum mechanics demonstrations
• Photon path investigations
• Polarization-sensitive interference studies

Educational Objectives :

• Understand the operating principles of optical interferometers
• Construct multiple interferometer configurations
• Study interference and fringe formation
• Measure optical wavelength accurately
• Determine refractive index of gases and solids
• Investigate thermal expansion using interferometry
• Analyze magnetostriction effects
• Study piezoelectric deformation
• Perform white-light interferometry
• Understand electro-optic phenomena
• Explore precision displacement measurement techniques
• Develop practical skills in optical alignment
• Learn advanced fringe counting techniques
• Perform high-resolution optical measurements
• Study polarization effects in interferometry
• Explore applications of interferometry in modern physics

• Research-grade modular interferometry system
• Builds Michelson, Sagnac, and Mach-Zehnder interferometers
• High-stability flexure mirror mounts
• Precision flexure translation stage
• Manual and electronic fringe counting
• Observation of sub-wavelength displacement changes (10⁻² to 10⁻⁴ λ)
• Supports numerous advanced laboratory investigations
• Student-controlled optical layout on a rigid optical breadboard
• Excellent mechanical stability for precision measurements
• Suitable for undergraduate, postgraduate, and research laboratories