Potential electronic transition chemical laser: parametric evaluation.

Area of Science:

• Physical Chemistry
• Quantum Chemistry
• Laser Physics

Background:

• Electronic transition lasers require specific molecular properties for optical gain.
• Understanding the relationship between molecular potential curves and gain is crucial for laser design.
• Previous studies have not fully elucidated the critical factors governing optical gain in heteronuclear diatomic molecules.

Purpose of the Study:

• To identify the most influential properties of electronic potential curves for heteronuclear diatomic molecules as potential electronic transition lasers.
• To determine the optimal vibrational-level distribution for achieving optical gain in these molecules.
• To derive a generalized gain equation accounting for rotational and vibrational partitioning.

Main Methods:

• Utilized a generalized computer code to calculate the minimum reactive branching ratio for optical gain.
• Performed a parametric study on electronic potential curves of heteronuclear diatomic molecules.
• Compiled molecular constants to link system classes to favorable vibrational distributions.

Main Results:

• Diatomic molecular systems were classified based on their minimum required reactive branching ratio for optical gain.
• Specific vibrational-level distribution classes were identified as most favorable for optical gain in different heteronuclear diatomic molecules.
• Potential laser candidates were identified based on these findings.

Conclusions:

• The electronic potential curve properties significantly impact a heteronuclear diatomic molecule's suitability for electronic transition lasers.
• Molecular systems exhibit distinct classes regarding the minimum reactive branching ratio needed for optical gain.
• The derived generalized gain equation provides a framework for predicting optical gain, considering rotational and vibrational effects.