2011/08/31 by S. T. Dawkins, R. Mitsch, D. Reitz +3 · 70 citations
Computer Science · Physics and Astronomy · #Atom (system on chip) #Atom optics #Atomic physics #Birefringence #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Coupling (piping) #Dispersion (optics) #Evanescent wave #Field (mathematics) #Laser #Laser linewidth #Materials science #Molecular physics #Nanofiber #Nanotechnology #Optics #Phase (matter) #Physics #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #physics.atom-ph #physics.optics #quant-ph
paper · pdf · doi:10.1103/physrevlett.107.243601
published in Physical Review Letters 107(24), 243601 (American Physical Society) · 4 pages, 4 figures
arxiv created 2011/10/22 · openalex publication_date 2011/12/07 · arxiv updated 2015/03/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We dispersively interface an ensemble of 1000 atoms trapped in the evanescent field surrounding a tapered optical nanofiber. This method relies on the azimuthally asymmetric coupling of the ensemble with the evanescent field of an off-resonant probe beam, transmitted through the nanofiber. The resulting birefringence and dispersion are significant; we observe a phase shift per atom of ∼1 mrad at a detuning of 6 times the natural linewidth, corresponding to an effective resonant optical density per atom of 0.027. Moreover, we utilize this strong dispersion to nondestructively determine the number of atoms.