Sokolovskii, G. S. and Dudelev, V. V. and Losev, S. N. and Zolotovskaya, Svetlana and Deryagin, A. G. and Kuchinskii, V. I. and Rafailov, E.U. and Sibbett, W. (2008) Generation of propagation-invariant light beams from semiconductor light sources. Technical Physics Letters, 34 (12). pp. 1075-1078. ISSN 1063-7850
Full text not available from this repository.Abstract
We have studied the possibility of generating propagation-invariant (nondiffracting) light beams using various semiconductor sources of radiation. The propagation-invariant (Bessel) beams have been generated using cone-shaped lenses (axicones) with an apical angle of 178° and 170°, which provided beams with a central spot diameter of 100 and 10 μm, respectively. The radiation sources were represented by various types of light-emitting diodes, quasi-single-mode semiconductor vertical-cavity surface-emitting lasers and broad-stripe (100 μm) edge-emitting laser diodes. It is demonstrated that these semiconductor light sources offer a promising basis for the generation of propagation-invariant light beams in various devices (including optical tweezers) intended for manipulating micro- and nanodimensional objects.