dorsal/arxiv
View SchemaSubstrate-based atom waveguide using guided two-color evanescent light fields
| Authors | A. H. Barnett, S. P. Smith, M. Olshanii, K. S. Johnson, A. W. Adams, M. Prentiss |
|---|---|
| Categories | |
| ArXiv ID | physics/9907014 |
| URL | https://arxiv.org/abs/physics/9907014 |
| DOI | 10.1103/PhysRevA.61.023608 |
Abstract
We propose a dipole-force linear waveguide which confines neutral atoms up to lambda/2 above a microfabricated single-mode dielectric optical guide. The optical guide carries far blue-detuned light in the horizontally-polarized TE mode and far red-detuned light in the vertically-polarized TM mode, with both modes close to optical cut-off. A trapping minimum in the transverse plane is formed above the optical guide due to the differing evanescent decay lengths of the two modes. This design allows manufacture of mechanically stable atom-optical elements on a substrate. We calculate the full vector bound modes for an arbitrary guide shape using two-dimensional non-uniform finite elements in the frequency-domain, allowing us to optimize atom waveguide properties. We find that a rectangular optical guide of 0.8um by 0.2um carrying 6mW of total laser power (detuning +-15nm about the D2 line) gives a trap depth of 200uK for cesium atoms (m_F = 0), transverse oscillation frequencies of f_x = 40kHz and f_y = 160kHz, collection area ~ 1um^2 and coherence time of 9ms. We discuss the effects of non-zero m_F, surface interactions, heating rate, the substrate refractive index, and the limits on waveguide bending radius.
{
"annotation_id": "9a46aef6-2e78-4c7a-bf1e-dbc60d64b3ff",
"date_created": "2026-03-02T18:01:24.597000Z",
"date_modified": "2026-03-02T18:01:24.597000Z",
"file_hash": "062f391fab1a6ee094a2debfaa830baa8e376e9dec841ec4752f32cee4f1fd89",
"private": false,
"record": {
"abstract": "We propose a dipole-force linear waveguide which confines neutral atoms up to\nlambda/2 above a microfabricated single-mode dielectric optical guide. The\noptical guide carries far blue-detuned light in the horizontally-polarized TE\nmode and far red-detuned light in the vertically-polarized TM mode, with both\nmodes close to optical cut-off. A trapping minimum in the transverse plane is\nformed above the optical guide due to the differing evanescent decay lengths of\nthe two modes. This design allows manufacture of mechanically stable\natom-optical elements on a substrate. We calculate the full vector bound modes\nfor an arbitrary guide shape using two-dimensional non-uniform finite elements\nin the frequency-domain, allowing us to optimize atom waveguide properties. We\nfind that a rectangular optical guide of 0.8um by 0.2um carrying 6mW of total\nlaser power (detuning +-15nm about the D2 line) gives a trap depth of 200uK for\ncesium atoms (m_F = 0), transverse oscillation frequencies of f_x = 40kHz and\nf_y = 160kHz, collection area ~ 1um^2 and coherence time of 9ms. We discuss the\neffects of non-zero m_F, surface interactions, heating rate, the substrate\nrefractive index, and the limits on waveguide bending radius.",
"arxiv_id": "physics/9907014",
"authors": [
"A. H. Barnett",
"S. P. Smith",
"M. Olshanii",
"K. S. Johnson",
"A. W. Adams",
"M. Prentiss"
],
"categories": [
"physics.atom-ph",
"cond-mat",
"physics.optics",
"quant-ph"
],
"doi": "10.1103/PhysRevA.61.023608",
"title": "Substrate-based atom waveguide using guided two-color evanescent light fields",
"url": "https://arxiv.org/abs/physics/9907014"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "2097d1e8-8ec0-46e4-841c-078fdc666a95",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}