Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.133602
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Funding
- E.U. through ERC ARENA
- Triangle de la Physique
- EPSRC
- Leverhulme Trust
- Engineering and Physical Sciences Research Council [EP/H049568/1, EP/G060363/1] Funding Source: researchfish
- EPSRC [EP/H049568/1, EP/G060363/1] Funding Source: UKRI
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We study the emergence of collective scattering in the presence of dipole-dipole interactions when we illuminate a cold cloud of rubidium atoms with a near-resonant and weak intensity laser. The size of the atomic sample is comparable to the wavelength of light. When we gradually increase the number of atoms from 1 to similar to 450, we observe a broadening of the line, a small redshift and, consistently with these, a strong suppression of the scattered light with respect to the noninteracting atom case. We compare our data to numerical simulations of the optical response, which include the internal level structure of the atoms.
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