In the optical vortex microscopy the focused Gaussian beam with optical vortex scans a sample. An optical vortex can be introduced into a laser beam with the use of a special optical element—a vortex lens. When moving the vortex lens, the optical vortex changes its position inside the spot formed by a focused laser beam. This effect can be used as a new precise scanning technique. In this paper, we study the optical vortex behavior at the sample plane. We also estimate if the new scanning technique results in observable effects that could be used for a phase object detection.
© 2012 Optical Society of America
Original Manuscript: January 18, 2012
Manuscript Accepted: February 8, 2012
Published: March 28, 2012
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics
Ireneusz Augustyniak, Agnieszka Popiołek-Masajada, Jan Masajada, and Sławomir Drobczyński, "New scanning technique for the optical vortex microscope," Appl. Opt. 51, C117-C124 (2012)