Gold nanoparticles motion controlled by transverse spin momentum of evanescent waves in biomedical applications

Angelsky, Oleg V.; Zenkova, C. Yu.; Ivanskyi, Dmytro I.; Tkachuk, V. M.

doi:10.1117/12.2534514

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…To talk about the influence of an optical field on nanostructures is necessary in order to distinguish the action of evanescent optical fields of a complex energy distribution, in particular to transfer of microdoses of drugs, providing precise accuracy of the transfer site and the transfer rate of hundreds of nanometers per second [18][19][20]. This situation becomes possible in the case of excitation of evanescent fields by linearly polarized beams with the azimuth of polarization of 45°.…”

Section: Evanescent Fields For Micro-object Manipulationmentioning

confidence: 99%

New Trends of Optical Measurements

Angelsky¹,

Maksymyak²,

Zenkova³

et al. 2022

Applied Aspects of Modern Metrology

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Some of the achievements of modern optical metrology are offered for the reader at this chapter. Optical testing methods have always attracted by their important advantages: distance, non-destructive impact on the test object and, of course, high accuracy. So, using of polarization optics approach, the authors were able to implement the methods for controlling the surface roughness for the moving surface with the measurement accuracy of 10 angstroms. It has become possible to make a breakthrough in the basic methods of measurements from the nano to the femto or pico units of the measured quantity value over the past decades. Control of nano (micro) particle motion by an optical field and their use for testing complex optical fields; ultra-precise determination of the optical parameters of both solid and liquid and gas-like substances by optical methods; by interference methods and many other, are proposed for consideration here. Some biomedical applications are also offered for reader’s familiarization. Particularly, the results of 3D Stokes-polarimetric mapping of microscopic biological images with digital holographic reproduction of layer-by-layer ellipticity polarization maps in differential diagnosis of benign and malignant tumors with different degrees of differentiation are presented. The authors have shown that using of polarization-holographic measurements in biomedical applications makes it possible to obtain a reliable diagnostic of pathological states both of biological fluids and solid-state objects.

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Section: Evanescent Fields For Micro-object Manipulationmentioning

confidence: 99%

New Trends of Optical Measurements

Angelsky¹,

Maksymyak²,

Zenkova³

et al. 2022

Applied Aspects of Modern Metrology

View full text Add to dashboard Cite

show abstract

Resonant enhancement of evanescent waves with graphene and double-negative materials in the visible regime

2020

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Influence of components of optical momentum and spin of evanescent waves on micro- and nanoobjects (Review)

2020

Biophysical Bulletin

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Background: Mechanical properties of light are widely used in applied areas, such as optical trapping and manipulation, sorting, deformation of biological cells and molecules. In general, the evanescent field may exhibit three components of optical momentum and spin angular momentum (spin), which manifest themselves in the occurrence of corresponding components of optical force and torque. Such extraordinary properties of evanescent waves open up new possibilities for manipulating of micro- and nanoobjects, in comparing with classical optical tweezers and manipulators, which can be used for solving the applied problems, in particular, of biomedicine. Objectives: Aim of this work is to analyze and summarize recent studies regarding to the mechanical influence of evanescent field on micro- and nanoobjects, in particular, related to the influence of transverse components of optical momentum and spin. Materials and methods: Method of momenta allows one to distinguish in an evanescent field the action of optical forces and torques, associated with the components of optical momentum and angular momentum of different nature and action direction, depending on the polarization of the incident wave. Experimental methods of particle manipulation in the near field allow visualizing such an influence, which makes it possible for solving the applied problems. Results: Recent studies demonstrate the action on nano- and microobjects of such "extraordinary" optical momentum and spin components, as transverse spin momentum, transverse spin, transverse imaginary optical momentum component, and vertical spin. Using, in particular, the latter, to solve the applied problems of biomedicine is proposed, such as transporting of therapeutic agents to pathological areas or restoring vascular patency and tissue blood supply. Conclusions: Obtained results of theoretical and experimental investigation of the mechanical action of the optical momentum and spin components of evanescent field allow us to extend the approaches of optical manipulation of micro- and nanoobjects, with the possibility of applications, in particular, for the problems of biomedicine.

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Gold nanoparticles motion controlled by transverse spin momentum of evanescent waves in biomedical applications

Cited by 3 publications

References 13 publications

New Trends of Optical Measurements

New Trends of Optical Measurements

Resonant enhancement of evanescent waves with graphene and double-negative materials in the visible regime

Influence of components of optical momentum and spin of evanescent waves on micro- and nanoobjects (Review)

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