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Related Experiment Video

Updated: May 26, 2026

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities
09:12

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities

Published on: April 22, 2013

Three-Dimensional Magneto-Optical Trap Beam Delivery with Scalable Wafer-Level Optics.

Zi Wang1,2,3, Phillip S Cloud4, Minsuk Lee4

  • 1National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States.

ACS Photonics
|May 25, 2026
PubMed
Summary

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This summary is machine-generated.

Researchers developed a novel two-wafer architecture for photonic integrated circuit (PIC) magneto-optical traps (MOTs), eliminating external optics. This compact design simplifies alignment for cold atom applications.

Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Photonics and Integrated Optics
  • Nanotechnology

Background:

  • Magneto-optical traps (MOTs) are crucial for cold atom preparation in precision applications.
  • Conventional free-space optics for MOTs are bulky, costly, and hard to align.
  • Existing photonic integrated circuit (PIC) MOTs still require external optics alignment, hindering miniaturization.

Purpose of the Study:

  • To present a simplified, compact, and scalable beam delivery architecture for PIC-based MOTs.
  • To eliminate the need for external optical components in MOT systems.
  • To enable foundry-compatible fabrication of integrated MOT beam delivery.

Main Methods:

  • Developed a two-wafer beam delivery architecture for PIC-based MOTs.
Keywords:
inverse designmagneto-optical trapmetagratingphotonic integrated circuittopology optimization

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Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
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Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

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Last Updated: May 26, 2026

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities
09:12

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities

Published on: April 22, 2013

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

  • Utilized inverse design and optimization for a multifunctional grating coupler and integrated metasurface retroreflectors.
  • Designed components for circularly polarized light delivery of 87Rb atoms at 780 nm.

    • Main Results:

    • Experimentally demonstrated a retroreflector with 74% efficiency and 0.85 ellipticity.
    • Simulated a grating coupler with 20% out-coupling efficiency and 0.85 polarization ellipticity.
    • The proposed architecture significantly simplifies alignment and offers a compact footprint.

    Conclusions:

    • The novel two-wafer architecture successfully integrates all beam delivery optics onto a PIC.
    • This approach eliminates external optics, simplifying alignment and reducing complexity for MOT systems.
    • The design is scalable, foundry-compatible, and suitable for miniaturized precision atomic applications.