# Microstructured Stark Decelerator

## TL;DR

This paper introduces a novel microstructured electrode design for Stark decelerators, enabling efficient control of polar molecules with simpler electric field timing, potentially integrating molecular deceleration with solid-state electronics.

## Contribution

The paper proposes a new type-B architecture with microstructured electrodes and simplified pulse timing, demonstrated through simulations to effectively decelerate and reaccelerate molecules.

## Key findings

- A 2 cm decelerator can slow molecules from 200 m/s to near rest in 150 microseconds.
- The new design simplifies electric field pulse timing compared to traditional architectures.
- Simulations show effective longitudinal transmission with potential for integration with solid-state electronics.

## Abstract

A Stark decelerator is an effective tool for controlling motional degrees of freedom of polar molecules. Due to technical limitations, many of the current Stark decelerators focus on molecules in low-field-seeking quantum states and are built based on a fixed electrode size and spacing (type-A architecture). Here, we present an alternative method based on a different architecture, so-called type-B, with microstructured electrodes and a simpler electric field pulse timing with the prospect of producing cold, quasi-CW molecular beams. We demonstrate with simulations the feasibility of this method and show that a 2 cm decelerator consisting of 100 stages can bring molecules from 200 m/s to a near standstill in about 150 microseconds. Subsequently, the molecules can be reaccelerated to 200 m/s in a phase-stable manner. Our simulations focus on the longitudinal transmission leaving the problem of a transverse confinement for a future study. This work points to a possible way of integrating polar molecule accelerators with solid-state electronics.