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Fabry Perot Interferometer Model SFP 26

Categories: Educational Equipments

Model No: AGN-1826

It is a high-precision optical instrument widely used for accurate wavelength measurement, comparison of spectral lines, and detailed examination of hyperfine structures. It also enables the study of wavelength shifts under external fields, such as the Zeeman effect in magnetic fields. The system incorporates a partially coated mirror mounted in an aluminium housing, positioned in front of a moving mirror to establish the Fabry–Perot cavity. Two fine adjustment screws are provided to ensure accurate parallelism of the etalons. An inbuilt telescope (3× magnification) with a Ramsden eyepiece and crossline graticule allows sharp and precise observation of interference fringes.

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Technical Specifications

Precision Instrument: Suitable for accurate wavelength measurement and comparison of spectral lines.
Hyperfine Structure Studies: Enables examination of fine and hyperfine details of spectral lines.
Magnetic Field Application: Useful for measuring wavelength shifts (Zeeman effect).
Etalon Assembly:
- Partially coated mirror in aluminium housing.
- Moving mirror with provision for alignment.
- Two fine adjustment screws for achieving parallelism.
Observation System:
- Built-in telescope with 3× magnification.
- Ramsden eyepiece fitted with crossline graticule for precise fringe analysis.
Educational & Research Utility: Ideal for advanced optical experiments in teaching laboratories and research institutions.

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