A slit-type atom deflector with near-field light

Totsuka, Kouki; Ito, Haruhiko; Suzuki, Kiichi; Yamamoto, Kazuhiro; Ohtsu, Motoichi; Yatsui, Takashi
March 2003
Applied Physics Letters;3/10/2003, Vol. 82 Issue 10, p1616
Academic Journal
We developed a near-field optical deflector for precise direction control of atomic motion using a dipole force. The blue-detuned, near-field light used to deflect atoms was generated near the edge of a 100-nm-wide slit and had a spatial distribution of 126 nm at a distance of 10 nm from the top edge. The deflection angle for a Rb atom was a function of light intensity, frequency detuning, and atomic velocity.


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