Description
Atomfair-PLI-739 Precision Laser Interferometer
Product Overview
Atomfair-PLI-739 is a high-performance precision laser interferometer dedicated to experimental research related to interference, diffraction, and polarization. It supports flexible execution of three classic interference experiments: Michelson Interference, Fabry-Perot Interference, and Twyman-Green Interference. Featuring an exquisite integrated design, all structural components are securely mounted on a heavy-duty and stable platform. This not only significantly reduces experimental setup time and enhances efficiency but also effectively resists the interference of vibrations on the experimental process, ensuring accurate and reliable results. The seamless switching between the three interference modes, combined with rich experimental content and simple operation, makes it an excellent choice for conducting combined interference experiments.
Key Experimental Capabilities
1. Michelson Interference Mode
- Obtain interference fringes; observe equal-inclination interference fringes, equal-thickness interference fringes, and white light interference fringes (requires optional accessories)
- Measure the wavelength of He-Ne laser and sodium light
- Determine the wavelength difference of sodium yellow doublet
- Measure air refractive index (requires optional accessories)
- Determine the refractive index of transparent media
2. Fabry-Perot Interference Mode
- Observe multi-beam interference phenomena
- Measure the wavelength of He-Ne laser
- Observe the interference of sodium doublet
3. Twyman-Green Interference Mode
- Observe Twyman-Green interference phenomena
Standard Configuration & Technical Specifications
| Configuration Name | Detailed Specifications |
|---|---|
| Precision Interferometer Main Unit | Flatness of beam splitter and compensation plate: better than 1/10λ; Minimum division of micrometer screw corresponding to movable mirror stroke: 0.00025mm; Movable mirror stroke: 0.625mm; Fabry-Perot mirror: reflectivity 90%, transmittance 1%, diameter 30mm |
| Laser & Bracket | He-Ne laser, wavelength 632.8nm, including matching power supply |
| Ground Glass Screen | Diameter: 60mm |
| Adjustment Frame | Including beam expander frame, extension frame, and film holder |
| Other Accessories | Dual-purpose observation screen, transparent thin sheets |
Note: The above configurations and parameters are for reference only. Please refer to the product packing list for the actual configuration. Minor changes will not be notified separately.
Optional Accessories
| Optional Accessory Name | Specification Parameters |
|---|---|
| Sodium-Tungsten Dual Lamp | Sodium lamp power: 20W; Tungsten bromide lamp specification: 12V 35W, adjustable brightness |
| Air Chamber | Length: 80mm, suitable for air refractive index measurement |
Application Scenarios
Ideal for educational institutions, research laboratories, and industrial R&D departments engaged in optical physics research, laser technology development, and precision measurement. It can be widely used in experiments and projects such as optical interference principle verification, wavelength measurement, refractive index testing, and optical component performance detection, providing reliable experimental support for scientific research and technical innovation.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.





