Experimental Study of the NaK 3(1)Pi State

Area of Science:

• Molecular Spectroscopy
• Quantum Chemistry
• Laser Physics

Background:

• Accurate potential energy curves are crucial for understanding molecular behavior.
• Previous theoretical calculations provide a basis for experimental validation.

Purpose of the Study:

• Determine the potential energy curve of the NaK 3(1)Pi state.
• Precisely map ro-vibrational energy levels.
• Investigate the transition dipole moment variation.

Main Methods:

• Optical-optical double resonance spectroscopy using cw dye and Ti:Sapphire lasers.
• Doppler-free signal detection for precise energy level mapping.
• Analysis of fluorescence scans and Franck-Condon factors.

Main Results:

• Accurate mapping of NaK 3(1)Pi state ro-vibrational energy levels.
• Determination of molecular constants via Dunham expansion.
• Construction of an RKR potential curve in excellent agreement with theory.

Conclusions:

• The experimental results validate theoretical predictions for the NaK 3(1)Pi state potential.
• The study provides precise spectroscopic data for the NaK molecule.
• The determined transition dipole moment variation offers insights into molecular dynamics.