Correlation function analysis of optically trapped paramagnetic microparticles in external magnetic field

Maria N. Skryabina; Evgeny V. Lyubin; Maria D. Khokhlova; Andrey A. Fedyanin

doi:10.1117/12.929199

10 October 2012 Correlation function analysis of optically trapped paramagnetic microparticles in external magnetic field

Maria N. Skryabina, Evgeny V. Lyubin, Maria D. Khokhlova, Andrey A. Fedyanin

Author Affiliations +

Proceedings Volume 8458, Optical Trapping and Optical Micromanipulation IX; 84580G (2012) https://doi.org/10.1117/12.929199
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

Correlation function analysis combined with optical tweezers technique is proposed for studying of magnetic interaction influence on statistical properties of microparticles Brownian motion in liquid. It is shown that autocorrelation function of Brownian particle displacements from optical trap center contains information about particles rotation frequency in rotating magnetic field. Powerful method based on correlation analysis to detect the interaction between paramagnetic microparticles in a constant magnetic field is suggested. Experimental results show that magnetic interaction changes cross-correlation function of nanometer displacements of two optically trapped particles in a constant external magnetic field.

Citation Download Citation

Maria N. Skryabina, Evgeny V. Lyubin, Maria D. Khokhlova, and Andrey A. Fedyanin "Correlation function analysis of optically trapped paramagnetic microparticles in external magnetic field", Proc. SPIE 8458, Optical Trapping and Optical Micromanipulation IX, 84580G (10 October 2012); https://doi.org/10.1117/12.929199

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available