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Clocked atom delivery to a photonic crystal waveguide

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [1];  [2];  [3];  [4];  [1]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). Norman Bridge Lab. of Physics
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Norman Bridge Lab. of Physics; Univ. of Colorado, Boulder, CO (United States). JILA
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States). Norman Bridge Lab. of Physics; Univ. of Massachusetts, Amherst, MA (United States). Dept. of Electrical and Computer Engineering
  4. California Inst. of Technology (CalTech), Pasadena, CA (United States). Norman Bridge Lab. of Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Experiments and numerical simulations are described that develop quantitative understanding of atomic motion near the surfaces of nanoscopic photonic crystal waveguides (PCWs). Ultracold atoms are delivered from a moving optical lattice into the PCW. Synchronous with the moving lattice, transmission spectra for a guided-mode probe field are recorded as functions of lattice transport time and frequency detuning of the probe beam. By way of measurements such as these, we have been able to validate quantitatively our numerical simulations, which are based upon detailed understanding of atomic trajectories that pass around and through nanoscopic regions of the PCW under the influence of optical and surface forces. The resolution for mapping atomic motion is roughly 50 nm in space and 100 ns in time. By introducing auxiliary guided-mode (GM) fields that provide spatially varying AC Stark shifts, we have, to some degree, begun to control atomic trajectories, such as to enhance the flux into the central vacuum gap of the PCW at predetermined times and with known AC Stark shifts. In conclusion, applications of these capabilities include enabling high fractional filling of optical trap sites within PCWs, calibration of optical fields within PCWs, and utilization of the time-dependent, optically dense atomic medium for novel nonlinear optical experiments.

Research Organization:
Los Alamos National Laboratory (LANL)
Sponsoring Organization:
National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); US Air Force Office of Scientific Research (AFOSR)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1494467
Report Number(s):
LA-UR-18-29096
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 2 Vol. 116; ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Two-dimensional photonic crystals for engineering atom–light interactions journal June 2019
Near‐Field Optical Tweezers for Chemistry and Biology journal October 2019
Near‐Field Optical Tweezers for Chemistry and Biology journal December 2019
Trapping single atoms on a nanophotonic circuit with configurable tweezer lattices journal April 2019
Waveguide-coupled single collective excitation of atomic arrays journal February 2019
Microwave transmission through an artificial atomic chain coupled to a superconducting photonic crystal journal April 2019
Two-Dimensional Photonic Crystals for Engineering Atom-Light Interactions text January 2018
Waveguide-coupled single collective excitation of atomic arrays text January 2019

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