Proceedings of the Optical Society of Korea Conference (한국광학회:학술대회논문집)

Optical Society of Korea (한국광학회)
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A Cavity-Assisted Atom Detector (CAAD)

캐비티-유도된 원자측정 장치

  • Chough, Young-Tak (Center for Macroscopic Quantum-field Lasers and Department of Physics Korea Advanced Institute of Science and Technology) ;
  • Hyuncheol Nha (Center for Macroscopic Quantum-field Lasers and Department of Physics Korea Advanced Institute of Science and Technolog) ;
  • Kyungwon An (Center for Macroscopic Quantum-field Lasers and Department of Physics Korea Advanced Institute of Science and Technology)
  • Published : 2000.02.01
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Abstract

We introduce a scheme with a maximized efficiency of detecting atoms passing through an optical standing-wave mode cavity. Consider a standing-wave optical cavity illuminated by a weak probe beam through one of its mirrors where the transmission through the other mirror is monitored by a photodetector. If an atom is put in the cavity, the atom-cavity coupling shifts the resonance frequency of the system via the so-called normal mode splitting, and thereby the transmission power will drop. In fact, this type of atom detection scheme has been used in recent single atom trap experiments In practice, however, the field in a standing-wave mode will have a geometrical structure having nodes and antinodes that when the atom traverses the cavity through one of the nodes, there will be no such effect of atom-field interaction. (omitted)

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