Optical lift is an optical analogue of aerodynamic lift, in which a cambered refractive object with differently shaped top and bottom surfaces experiences a stable transverse lift force when placed in a uniform stream of light.[1]
^Swartzlander Jr, Grover A.; Timothy J. Peterson; Alexandra B. Artusio-Glimpse & Alan D. Raisanen (5 December 2010). "Stable optical lift". Nature Photonics. 5 (1): 48–51. Bibcode:2011NaPho...5...48S. doi:10.1038/nphoton.2010.266.