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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

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Nanoscale light-matter interactions in atomic cladding waveguides.

Liron Stern¹, Boris Desiatov, Ilya Goykhman

¹Department of Applied Physics, The Benin School of Engineering and Computer Science, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.

Nature Communications

|March 7, 2013

Summary

This summary is machine-generated.

Researchers developed a novel chip-scale platform for light-matter interactions using silicon photonics and rubidium vapour. This miniaturized atomic cladding waveguide enhances light-vapour interactions for applications in quantum technologies.

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Area of Science:

Photonics
Quantum Optics
Materials Science

Background:

Alkali vapours like rubidium are crucial for quantum computation, atomic clocks, and magnetometers.
Miniaturization of vapour cells enhances light-matter interactions, enabling low-power nonlinear optics.

Purpose of the Study:

To create a compact and efficient platform for tailored light-vapour interactions on a chip.
To leverage silicon photonics for integrated atomic vapour cells.

Main Methods:

Fabrication of an atomic cladding waveguide using a silicon nitride nano-waveguide core.
Encasing the waveguide core with rubidium vapour.
Characterization of light-matter interactions within the integrated device.

Main Results:

Demonstrated efficient interaction between the guided optical mode and the rubidium vapour cladding.
Observed saturation of rubidium absorption at nanowatt power levels due to high optical mode confinement.
Validated the potential of silicon photonics for integrated atomic vapour applications.

Conclusions:

The developed atomic cladding waveguide offers a flexible and efficient platform for on-chip light-vapour interactions.
Miniaturization significantly enhances light-matter interactions, reducing power requirements for nonlinear optical phenomena.
This platform paves the way for advanced quantum technologies and sensing devices.