Demonstration of the Interaction between Two Stopped Light Pulses
arXiv:1111.2110 · doi:10.1103/PhysRevLett.108.173603
Abstract
We report the first experimental demonstration that two light pulses were made motionless and interacted with each other via a medium. The interaction time is, in principle, as long as possible and a considerable efficiency can be achieved even below single-photon level. We utilized the optical process of one photon pulse switched by another based on the effect of electromagnetically induced transparency to demonstrate the enhancement of optical nonlinear efficiency. With moving light pulses, the switching is activated at energy per area of 2 photons per atomic absorption cross section in the best situation as discussed in [Phys. Rev. Lett. 82, 4611 (1999)]. With motionless light pulses, we demonstrated that the switching is activated at 0.56 photons per atomic absorption cross section and that the light level can be further reduced by increasing the optical density of the medium. Our work enters a new regime of low light physics.
7 pages, 5 figures
References in corpus (9)
- Stationary pulses of light in an atomic medium
- Mapping photonic entanglement into and out of a quantum memory
- All-optical switching in rubidium vapor
- Stationary Light Pulses in Cold Atomic Media
- Stationary Light Pulses without Bragg Gratings
- Bose-Einstein condensation of stationary-light polaritons
- Dynamics of slow light and light storage in a Doppler-broadened electromagnetically-induced-transparency medium: A numerical approach
- Spinor Slow-Light and Dirac particles with variable mass
- Quantum Memory with Optically Trapped Atoms
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