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14 March 2018 Observation of optomechanical strain in a cold atomic cloud (Conference Presentation)
Noam Matzliah, Hagai Edri, Asif Sinay, Roee Ozeri, Nir Davidson
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Proceedings Volume 10549, Complex Light and Optical Forces XII; 1054911 (2018) https://doi.org/10.1117/12.2296677
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
We report the observation of the optomechanical strain applied to thermal and to quantum degenerate $^{87}Rb$ atomic clouds when illuminated by an intense, far detuned homogeneous laser beam. In this regime the atomic cloud acts as a lens which focuses the laser beam. As a back action, the atoms experience a force opposite to the beam deflection, which depends on the atomic cloud density profile. We experimentally demonstrate the basic features of this force, distinguishing it from the well-established scattering and dipole forces. The observed strain saturates, ultimately limiting the momentum impulse that can be transferred to the atoms. This optomechanical force may effectively induce inter-particle interactions, which can be optically tuned.
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Noam Matzliah, Hagai Edri, Asif Sinay, Roee Ozeri, and Nir Davidson "Observation of optomechanical strain in a cold atomic cloud (Conference Presentation)", Proc. SPIE 10549, Complex Light and Optical Forces XII, 1054911 (14 March 2018); https://doi.org/10.1117/12.2296677
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KEYWORDS
Clouds
Chemical species
Laser scattering
Scattering
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