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Clocked Atom Delivery to a Photonic Crystal Waveguide: Simulations and Experiments


Peng, Lucas Sky (2019) Clocked Atom Delivery to a Photonic Crystal Waveguide: Simulations and Experiments. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/KDQ6-3S79.


Integrating atomic physics with nanophotonics devices provides a new research platform for quantum optics and many-body physics. The robustness and scalability of advanced lithographic fabrication technology provide powerful tools to enhance and control atom-photon interaction. Dispersion engineered photonic crystal waveguides (PCWs), such as the alligator photonic crystal waveguides (APCWs) described in this thesis, allow stable trapping and probing of atoms via guided modes (GMs). By tuning the photonic band-edges of the PCWs, the photon-mediated interactions between atoms can be modified. This thesis describes simulations and experiments that develop a quantitative understanding of atomic motion near the surfaces of APCWs. The atoms are delivered to APCWs using optical lattice. 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. With these 2D "clocked" spectra, we have been able to validate quantitatively our numerical simulations, which are based upon a detailed understanding of atomic trajectories that pass around and through nanoscopic regions of the APCW under the influence of optical and surface forces. By introducing auxiliary GMs of various polarizations and intensities, we have begun to control the atomic trajectories to some degree. For example, atoms can be guided to the central vacuum gap of the APCW at predetermined times and with known AC-Stark shifts. The applications of combining clocked atom delivery and numerical simulation 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.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Photonic Crystal, Quantum Optics, Atomic Physics, Quantum Simulation
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Kimble, H. Jeff
Thesis Committee:
  • Vahala, Kerry J. (chair)
  • Kimble, H. Jeff
  • Hutzler, Nicholas R.
  • Alicea, Jason F.
Defense Date:13 May 2019
Non-Caltech Author Email:lucasp0927 (AT)
Funding AgencyGrant Number
Air Force of Scientific Research (AFOSR)FA9550-10-1-0197
Air Force of Scientific Research (AFOSR)FA9550-12-1-0004 KK1224
National Science Foundation (NSF)PHY-1205729
National Science Foundation (NSF)PHY-1125565
Air Force of Scientific Research (AFOSR)FA9550-16-1-0323 42700-Z8183001
Office of Naval Research (ONR)N00014-16-1-2399
Office of Naval Research (ONR)N00014-15-1-2761 123950-5092636
Record Number:CaltechTHESIS:05282019-145954923
Persistent URL:
Related URLs:
URLURL TypeDescription adapted for ch.1, ch.3, ch.4, ch.5 and ch.6.
Peng, Lucas Sky0000-0002-8053-0372
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11554
Deposited By: Lucas Peng
Deposited On:31 May 2019 20:37
Last Modified:08 Nov 2023 18:42

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