Optical Manipulation of Micro- and Nanoobjects Based on Structured Mesoscale Particles: a Brief Review
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Optical Manipulation of Micro- and Nanoobjects Based on Structured Mesoscale Particles: a Brief Review I. V. Minina, b, c, O. V. Minina, b, c, Yu. E. Geintsd, *, E. K. Paninad, and A. Karabchevskye, ** a
Siberian State University of Geosystems and Technologies, Novosibirsk, 630005 Russia bNational Research Tomsk State University, Tomsk, 634050 Russia c National Research Tomsk Polytechnic University, Tomsk, 634050 Russia dZuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055 Russia e Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beersheba, 8410501 Israel *e-mail: [email protected] **e-mail: [email protected] Received February 21, 2020; revised February 21, 2020; accepted March 6, 2020
Abstract—Spatial resolution of conventional optics, which is necessary for nondestructive trapping of microobjects, is limited by diffraction to a value equal to half of the radiation wavelength. Despite this limitation, use of optical methods is one of the main directions in biological and biomedical researches because only these methods have a minimal impact on living organisms. The rapid advance in this area is largely owing to the development of new optical technologies and the considerable advance in mesoscale photonics, which has allowed researchers to develop techniques for controlling structured beams for optical traps. In this work, we consider some recent trends in the field of optical manipulation based on mesoscale dielectric particles. Keywords: mesoscale element, dielectric particle, optical power, photonic nanojet, photonic hook, optical manipulation DOI: 10.1134/S1024856020050115
INTRODUCTION The conjecture about the existence of light pressure was made for the first time by J. Kepler in the 17th century; P.N. Lebedev discovered it experimentally in 1899 [1]. The possibility of trapping and nondestructive transferring individual objects with micron and submicron sizes under the action of the light force has bright prospects in different branches of science and technology [2–4]. The Nobel Prize for Physics in 2018 was awarded for the invention of the optical tweezers and their application in biophysics. In recent times, problems of developing new techniques for optical control for nano- and microparticles, as well as spatial localization and amplification of the electromagnetic field on subwavelength scales, are especially topical. However, it is well known that the spatial resolution of conventional optics is determined only by the radiation wavelength (in the medium) and numerical aperture of the optical lens; it does not exceed a value on the order of half the wavelength due to fundamental diffraction limitations [5]. In recent years, various types of structured optical beams [6–8] for the mechanical impact on nanoparticles in the subwavelength scale [9–11] were obtained and used. Below, we briefly consider electromagnetic
field localization methods based on using the principles of mesoscale d
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