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A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

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Published on: January 28, 2018

Effusive atomic oven nozzle design using an aligned microcapillary array.

Ruwan Senaratne¹, Shankari V Rajagopal¹, Zachary A Geiger¹

¹Department of Physics and California Institute for Quantum Emulation, University of California Santa Barbara, Santa Barbara, California 93106, USA.

The Review of Scientific Instruments

|March 2, 2015

Summary

This summary is machine-generated.

We developed a simple, inexpensive multichannel effusive oven nozzle for improved atomic beam collimation. This design enhances oven lifetimes and creates a lithium atomic source ideal for trapped-atom experiments.

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Area of Science:

Atomic physics
Experimental apparatus design

Background:

Trapped-atom experiments require stable, well-collimated atomic beams.
Existing effusive oven designs can suffer from limited lifetimes and beam divergence.

Purpose of the Study:

To present a novel, cost-effective multichannel effusive oven nozzle.
To improve atomic beam collimation and extend oven operational lifetimes.
To demonstrate a suitable atomic lithium source for trapped-atom applications.

Main Methods:

Design and fabrication of a multichannel effusive oven nozzle.
Characterization of the atomic beam flux and intensity.
Evaluation of the source's suitability for trapped-atom experiments.

Main Results:

The new nozzle design significantly improves atomic beam collimation.
At 525°C, a collimated atomic lithium beam flux of 1.2 × 10^14 atoms/s was achieved.
Peak beam intensity exceeded 5.0 × 10^16 atoms/s/sr, suggesting decades of continuous operation.

Conclusions:

The multichannel effusive oven nozzle offers a simple and inexpensive solution for enhanced atomic beam generation.
This design provides a long-lifetime, high-intensity atomic lithium source for trapped-atom research.