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10 results on '"Kh Salakhov M."'

2. A new approach of recognition of ellipsoidal micro- and nanoparticles on AFM images and determination of their sizes

Author

Akhmadeev A. and Kh Salakhov M.

Subjects
atomic force microscopy, Computer Science::Computer Vision and Pattern Recognition, particle detection, size determination, image segmentation
Abstract

© 2016 IOP Publishing Ltd.In this work we develop an approach of automatic recognition of ellipsoidal particles on the atomic force microscopy (AFM) image and determination of their size, which is based on image segmentation and the surface approximation by ellipsoids. In addition to the comparative simplicity and rapidity of processing, this method allows us to determine the size of particles, the surface of which is not completely visible on the image. The proposed method showed good results on simulated images including noisy ones. Using this algorithm the size distributions of silica particles on experimental AFM images have been determined.

Published
2016

8. Plasmonic optical antenna design for performing tip-enhanced Raman spectroscopy and microscopy.

Author

Kharintsev, S. S., Hoffmann, G. G., Fishman, A. I., and Kh Salakhov, M.

Subjects
RAMAN spectroscopy, CARBON nanotubes, MICROSCOPY, QUASICRYSTALS, ELECTROLYTES
Abstract

This paper highlights optical plasmonic antennas designed with dc-pulsed low-voltage electrochemical etching of a gold wire for implementing tip-enhanced Raman scattering (TERS) measurements. We demonstrate a versatile electrochemical system that allows one to engineer TERS-active metallic gold tips with diverse shapes and sizes in a highly reproducible fashion. The underlying etching mechanism at a voltage-driven meniscus around a gold wire immersed into an electrolyte is discussed in detail. We show that the developed method is suitable to produce not only the simplest geometries such as cones and spheroids, but more complex designs. Attempts have been made to design plasmonic tapered antennas with quasi-uniformly spaced nano-sized bumps on the mesoscopic zone for the extra surface plasmon-light coupling. The capability of the patterned antenna to enhance and localize optical fields is demonstrated with near-field Raman microscopy and spectroscopy of single-walled carbon nanotubes bundles. [ABSTRACT FROM AUTHOR]

Published
2013
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9. A new approach of recognition of ellipsoidal micro- and nanoparticles on AFM images and determination of their sizes

Author

Akhmadeev A., Kh Salakhov M., Akhmadeev A., and Kh Salakhov M.

Abstract

© 2016 IOP Publishing Ltd.In this work we develop an approach of automatic recognition of ellipsoidal particles on the atomic force microscopy (AFM) image and determination of their size, which is based on image segmentation and the surface approximation by ellipsoids. In addition to the comparative simplicity and rapidity of processing, this method allows us to determine the size of particles, the surface of which is not completely visible on the image. The proposed method showed good results on simulated images including noisy ones. Using this algorithm the size distributions of silica particles on experimental AFM images have been determined.

10. A new approach of recognition of ellipsoidal micro- and nanoparticles on AFM images and determination of their sizes

Author

Akhmadeev A., Kh Salakhov M., Akhmadeev A., and Kh Salakhov M.

Abstract

© 2016 IOP Publishing Ltd.In this work we develop an approach of automatic recognition of ellipsoidal particles on the atomic force microscopy (AFM) image and determination of their size, which is based on image segmentation and the surface approximation by ellipsoids. In addition to the comparative simplicity and rapidity of processing, this method allows us to determine the size of particles, the surface of which is not completely visible on the image. The proposed method showed good results on simulated images including noisy ones. Using this algorithm the size distributions of silica particles on experimental AFM images have been determined.

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