A new approach of carbon nanoparticle using for the optical diagnostics of а complex scalar optical field obtained by scattering and diffraction of radiation on a surface with roughness is suggested in this paper. Luminescence of carbon nanoparticles made it possible to register their coordinate position in time. The algorithm for the reconstruction of scalar optical field intensity distribution through the analysis of nanoparticle position was proposed in the paper. The phase map of the optical speckle field was analyzed by a Hilbert transform filter to restore the phase of the entire object. A special attention was paid to the restoration of the phase singularities of the speckle field of the scattering studied object.
The work is devoted to the study of the optical properties of carbon nanoparticles synthesized by the method developed during our experimental studies. The optimal conditions for the creation of carbon nanostructures with predetermined properties are defined. Nanoparticles of the size of about 80-1000 nm were obtained in our experimental approach, the maximum of absorption of which is localized at wavelengths in the violet-blue region of the spectrum (420 nm and the maximum of luminescence in the green region (530 nm). The absorption index at the wavelength of 633 nm, which is used for the diagnosis of optical speckle fields, is estimated. The assumption is made about the possibility of using the obtained particles for correlation diagnostics of optical speckle fields.
The work is devoted to the study of the optical properties of carbon nanoparticles synthesized by the method developed during our experimental studies. The optimal conditions for the creation of carbon nanostructures with predetermined properties are defined. Nanoparticles of the size of about 80-1020 nm created in our experimental approach, the maximum of absorption of which is localized at wavelengths is in the violet-blue region of the spectrum (420 nm) and the maximum of luminescence is in the green region (530 nm) are discussed. The size of carbon nanoparticles, using biological and atomic force microscopes, is measured. The absorption index at the wavelength of 633 nm, which is used for the diagnosis of optical speckle fields, is estimated. The assumption is made about the possibility of using the obtained particles for correlation diagnostics of optical speckle fields.
A new approach of carbon nanoparticle using for the optical diagnostics of а complex scalar optical field obtained by scattering and diffraction of radiation on a surface with roughness is suggested in this paper. Luminescence of carbon nanoparticles made it possible to register their coordinate position in time. The algorithm for the reconstruction of scalar optical field intensity distribution through the analysis of nanoparticle position was proposed in the paper.
The use of carbon particles for the correlation and optical diagnostics of speckle fields obtained by diffraction on a surface with a roughness is suggested in this research. The optical properties of carbon nanoparticles, such as luminescence and absorption in the visible spectrum, as well as particle sizes of about hundreds nanometers, are the determining criteria for using these particles as an optical field probe. The obtained optical speckle field was analyzed by a 2D Hilbert transform to restore the phase of the entire object with high accuracy.
The work is devoted to the study of the optical properties of carbon nanoparticles synthesized by the method developed during our experimental studies. The optimal conditions for the creation of carbon nanostructures with predetermined properties are defined. Nanoparticles of the size of about 100 nm were obtained, the maximum of absorption of which is localized at wavelengths in the violet-blue region of the spectrum, while the maximum of luminescence – in the green region of the spectrum. The assumption is made about the possibility of using the obtained particles for correlation diagnostics of optical speckle fields.
New approaches of red blood cell (erythrocyte) controlling by the action of evanescent wave is proposed in the given research work. Theoretical and experimental models for describing the conditions of the erythrocyte transverse motion and the vertical spin realization have been analyzed in the special selected schemes. The use of a linearly polarized plane wave with azimuth of ±45° in a model experiment, specially suggested in this work, allows visualizing the transverse controlled motion of the erythrocyte, which enables to claim about new possibilities for controlling microobjects in biology and medicine.
The theoretical and experimental confirmation of the existence of a transverse spin momentum in an evanescent wave excited above the surface of a birefringent biological section is suggested in this research work. The possibility of controlling gold nanoparticles by the vertical spin of an evanescent wave in a surrounding fluid of tissue near the surface layer of the section is demonstrated.
New approaches of red blood cell (erythrocyte) controlling by the action of evanescent wave is proposed in the given research work. Theoretical and experimental models for describing the conditions of the erythrocyte transverse motion and the vertical spin realization have been analyzed in the special selected schemes. The use of a linearly polarized plane wave with azimuth of ±450 in a model experiment, specially suggested in this work, allows visualizing the transverse controlled motion of the erythrocyte, which enables to claim about new possibilities for controlling microobjects in biology and medicine.
The paper presents main theoretical approaches allowing for calculation a set of optical forces and momentum in a birefringent plate. Total internal reflection at the “plate-air” interface implemented by the birefringent plate spattered with nanoparticles of gold creates the conditions for the allocation of the predominant action of the vertical spin of the evanescent wave, which has recently been predicted. The obtained results will be of vital importance in numerous areas where one operates with minute quantities of matter such as nanophysics, nanophotonics, precise chemistry and pharmacology etc.
The paper deals with the influence of an evanescent wave on the dynamics of motion of erythrocytes into blood plasma. Computer simulation of erythrocytes moving into evanescent field and experimental demonstration of the forecasted motion argue the feasibilities for control of position of cells into blood plasma. The range of velocities of transversal motion of erythrocytes due to action of the optical force of generated evanescent field is determined in a function of the angle of illumination of a cell by the linearly polarized wave with the azimuth of polarization 45°.
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