Share Email Print

Proceedings Paper

Constrained droplet eigenfrequency approach in nanodroplets research
Author(s): Nikolay N. Zografov; Rasim Bekir; Gergana M. Mihova; Iglika M. Dimitrova; Andreana I. Andreeva
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Forced droplet oscillations are used as a tool for study or manipulating the droplet behavior and as well the properties of the liquid-gas interface1. Resonant droplet tensiometry (RDT) is an experimental technique that uses a frequency modulated dielectrophoretic force to excite axisymmetric resonant oscillations in supported liquid droplets. Depends on the force amplitude and geometry of the electric field applied, RDT is capable to generate surface capillary waves only or to drive the entire bulk of the liquid droplet2. Constrained droplet eigenfrequency strongly depends on the contact-line properties and thus determines the resonant frequency. This work is dedicated to our study of weak capillary oscillations of supported spherical droplets with fixed (static, anchored) contact-line. Our recent experiments with pendant microdroplets show a strong correlation between the theoretically calculated eigenfrequency3 and our RDT experimental results4. This led us to propose the idea for the eigenfrequency approach in the nanodroplets research. We also analyze the future application of surface plasmon resonance, caused by capillary waves of oscillating nanodroplet5, as a possible solution for nanodroplet resonant frequency detection in RDT.

Paper Details

Date Published: 30 December 2019
PDF: 6 pages
Proc. SPIE 11332, International Conference on Quantum, Nonlinear, and Nanophotonics 2019 (ICQNN 2019), 1133209 (30 December 2019);
Show Author Affiliations
Nikolay N. Zografov, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
Rasim Bekir, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
Gergana M. Mihova, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
Iglika M. Dimitrova, Univ. of Chemical Technology and Metallurgy (Bulgaria)
Andreana I. Andreeva, Sofia Univ. St. Kliment Ohridksi (Bulgaria)

Published in SPIE Proceedings Vol. 11332:
International Conference on Quantum, Nonlinear, and Nanophotonics 2019 (ICQNN 2019)
Alexander A. Dreischuh; Tony Spassov; Isabelle Staude; Dragomir N. Neshev, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?