Abstract
A deformable mirror made of a magnetic liquid has been used to produce conical surfaces with sub wavelength () accuracy. The surface profile of the liquid mirror is controlled by 91 small magnetic coils. The mirror exhibits a linear response with respect to the currents driving the coils, and it allows for real-time changes of its surface profile. The magnetic liquid deformable mirror has been used to produce reflected beams having a conical wavefront; the propagation of the reflected beams was verified to be consistent with that of Bessel beams in the near and far field. The large dynamic range of such a deformable mirror has made it possible to generate Bessel beams with a broad range of beam parameters.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Mathieu Fortin, Michel Piché, Denis Brousseau, and Simon Thibault
Appl. Opt. 57(21) 6135-6144 (2018)
Denis Brousseau, Simon Thibault, Ermanno F. Borra, and Simon F. Boivin
Appl. Opt. 53(22) 4903-4909 (2014)
Xiaoming Yu, Ankesh Todi, and Hongmei Tang
Appl. Opt. 57(16) 4677-4682 (2018)