A traveling wave decelerator for neutral polar molecules

Area of Science:

• Molecular physics
• Electrostatic manipulation of molecules
• Experimental techniques in physical chemistry

Background:

• A previous study introduced a decelerator for neutral polar molecules utilizing macroscopic, 3D traveling electrostatic traps.
• Detailed descriptions of the electronics and mechanical design of such decelerators were previously lacking.

Purpose of the Study:

• To provide a comprehensive description of the decelerator's electronics and mechanical design.
• To present experimental results validating the performance of the decelerator.
• To assess non-adiabatic losses during the deceleration process.

Main Methods:

• Detailed engineering design of the decelerator's electronic and mechanical components.
• Experimental guidance of neutral polar molecules using traveling electrostatic traps.
• Comparison of experimental molecular velocity distributions with trajectory simulations.
• Analysis of deceleration signals for different isotopes (13CO vs. 12CO) to evaluate non-adiabatic effects.

Main Results:

• Experimental transverse velocity distributions of guided molecules were obtained.
• These experimental results showed good agreement with trajectory simulations.
• Non-adiabatic losses were assessed by comparing experimental deceleration signals of 13CO and 12CO against simulations.

Conclusions:

• The presented design and experimental data confirm the functionality of the traveling electrostatic trap decelerator.
• The study provides a benchmark for future molecular beam deceleration experiments.
• The assessment of non-adiabatic losses offers insights for optimizing molecular deceleration techniques.