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Atomic Force Microscopy

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...

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High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip

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Published on: November 16, 2019

一个集成的原子阵列-纳米光子芯片平台,具有无背景成像.

Shankar G Menon¹, Noah Glachman¹, Matteo Pompili¹

¹Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA.

Nature communications

|July 22, 2024

概括

我们开发了一种用于在光子芯片附近成像中性原子阵列的新方法,实现量子信息处理的高保真检测. 这一突破通过将原子量子比特与光子接口集成,使可扩展的量子网络成为可能.

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科学领域:

量子信息科学量子信息科学
原子物理原子物理
纳米光子学纳米光子学

背景情况:

光学子中的中性原子阵列是用于量子信息处理和模拟的可扩展平台.
单个原子可以通过发射纠的光子来用于量子网络.
将原子阵列与光子接口集成是具有挑战性的,因为光子设备附近的成像困难.

研究的目的:

为了展示一种用于将中性原子阵列与光子芯片集成的新架构.
为了克服在原子成像过程中来自光子设备的背景噪声和散射的挑战.
为了实现分布式量子计算架构的开发.

主要方法:

采用了将多达64个光学子与含有100多个纳米光子腔的毫米尺度光子芯片结合在一起的架构.
实施了多色激发和检测方案,用于高保真,无背景成像.
通过使用斯塔克转移测量,验证了在介电表面附近的原子捕获位置.

主要成果:

在纳米光子腔附近实现了中性原子的高保真 (~99.2%) 无背景成像.
证明成功成像被困在光子芯片表面上方几百纳米的原子.
成功地将原子重新排列成无缺陷的数组,并将它们加载到设备上.

结论:

开发的架构成功地将中性原子阵列与光子接口集成在一起.
多色成像技术克服了以前在光子设备附近原子检测方面的局限性.
这项工作为可扩展,分布式量子信息处理和量子网络铺平了道路.