Etalonnage absolu d'un spectrometre SISAM.

Area of Science:

• Spectroscopy
• Optical Metrology
• Atomic Physics

Background:

• Accurate wavelength measurements are fundamental in various scientific disciplines.
• Existing methods may have limitations in precision or scope.
• The development of advanced spectroscopic instruments is ongoing.

Purpose of the Study:

• To calibrate a SISAM spectrometer for absolute wavelength determination.
• To implement and test a novel apparatus utilizing Fabry-Perot fringes.
• To evaluate the performance and accuracy of the developed system.

Main Methods:

• Adjustment and configuration of a SISAM (Self-Ionization Spectroscopy Analysis Method) spectrometer.
• Integration of a Fabry-Perot interferometer setup for fringe analysis.
• Utilized emission lines for calibration and wavelength determination.

Main Results:

• The apparatus function width was determined to be less than 0.025 cm⁻¹.
• A relative accuracy of 0.003 cm⁻¹ was achieved for wavelength measurements.
• The results demonstrate the effectiveness of the Fabry-Perot based method.

Conclusions:

• The calibrated SISAM spectrometer provides high-precision absolute wavelength measurements.
• The developed apparatus offers a significant improvement in accuracy for spectroscopic applications.
• This work contributes to advancements in optical metrology and precision spectroscopy.