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Modulated optical lattice as an atomic fabry-perot interferometer
1Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy and INFM, Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy and Laboratoire Kastler-Brossel, Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris Cedex.
Physical Review Letters
|October 4, 2000
Summary
We propose engineering atomic band structures in optical lattices to create a novel Fabry-Perot interferometer for atom optics. This design offers large mode spacing and strong nonlinear coupling for efficient atomic filtering and bistability effects.
Area of Science:
- Atomic physics
- Quantum optics
- Condensed matter physics
Background:
- Optical lattices are crucial for manipulating atomic properties.
- Fabry-Perot interferometers are widely used in optics but face limitations with atomic systems.
- Controlling atomic effective mass and wave confinement is key for advanced atom optics.
Purpose of the Study:
- To engineer atomic band structure in optical lattices.
- To design a novel Fabry-Perot interferometer for atom optics.
- To achieve large mode spacing and strong nonlinear coupling in an atomic cavity.
Main Methods:
- Utilizing optical lattices to engineer atomic band structure.
- Spatially confining matter waves by slow modulation of lattice parameters.
- Leveraging interatomic interactions for nonlinear coupling.
Main Results:
- Achieving a significant reduction in atomic effective mass.
- Confining matter waves to a few dozen optical wavelengths.
- Obtaining large mode spacing (up to 1/10th recoil energy) for efficient filtering.
- Observing potential bistability and limiting effects due to nonlinear coupling.
Conclusions:
- Engineered atomic band structures in optical lattices enable novel Fabry-Perot interferometers.
- The proposed design offers enhanced filtering capabilities and nonlinear phenomena in atom optics.
- This approach opens new avenues for controlling and manipulating atomic beams.