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arXiv 2305.00570physics.atom-phquant-ph
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如何利用原子蒸汽细胞构建光学滤波器

How to Build an Optical Filter with an Atomic Vapor Cell

Leibniz University Hannover(汉诺威莱布尼茨大学)

Denis Uhland, Helena Dillmann, Yijun Wang, Ilja Gerhardt

AI总结:

本文介绍了利用原子蒸汽构建光学滤波器的两种方法,并提供从零开始搭建滤波器的实用指南及理论计算实现完美光谱的方法。

摘要:

原子蒸汽的性质、其与原子间跃迁的自然对齐以及其易用性使其非常适合用于构建光谱窄带光学滤波器。原子滤波器有两种类型:一种是基于多普勒展宽原子蒸汽对光的吸收,即 notch 滤波器;另一种是基于法拉第效应引起的共振光传输的带通滤波器。notch 滤波器利用共振光子的吸收来过滤出原子跃迁周围的小谱带,非共振部分的谱完全传输。基于法拉第效应的原子蒸汽可抑制非共振谱分量。光的传输起源于磁致旋转使线极化光接近原子共振时的旋转。这种滤波器组合允许选择性地接受特定频率的光。在本文中,我们讨论了这两种类型的滤波器,并阐明了原子线滤波器的特点。我们还提供了一套从零开始构建此类滤波器设置的实用指南,并讨论了通过理论计算实现几乎完美的原子光谱的方法。

英文摘要:

The nature of atomic vapors, their natural alignment with interatomic transitions, and their ease of use make them highly suited for spectrally narrow-banded optical filters. Atomic filters come in two flavors: a filter based on the absorption of light by the Doppler broadened atomic vapor, i.e., a notch filter, and a bandpass filter based on the transmission of resonant light caused by the Faraday effect. The notch filter uses the absorption of resonant photons to filter out a small spectral band around the atomic transition. The off-resonant part of the spectrum is fully transmitted. Atomic vapors based on the Faraday effect allow for suppression of the detuned spectral fraction. Transmission of light originates from the magnetically induced rotation of linear polarized light close to an atomic resonance. This filter constellation allows selective acceptance of specific light frequencies. In this manuscript, we discuss these two types of filters and elucidate the specialties of atomic line filters. We also present a practical guide on building such filter setups from scratch and discuss an approach to achieve an almost perfect atomic spectrum backed by theoretical calculations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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