Spatial thermal inhomogeneities as a source of Brownian motion

Sergey N. Bagayev; Valery A. Orlov; Sergey V. Panov

doi:10.1117/12.752305

9 July 2007 Spatial thermal inhomogeneities as a source of Brownian motion

Sergey N. Bagayev, Valery A. Orlov, Sergey V. Panov

Proceedings Volume 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics; 67270T (2007) https://doi.org/10.1117/12.752305
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

Abstract

Experimental investigations of the thermal diffusion motion of individual probe microparticles in various liquids have been carried out by using the phase-sensitive laser method of light-scattering spectroscopy. It has been shown that at observation times τ ≥ 1s there is a good agreement between the obtained experimental data and the well-known Einstein-Smoluchowski linear law of Brownian motion (see manuscript for equation). At small observation times τ<<1 s, the square law of motion (see manuscript for equation) is valid. The molecular cooperative mechanism of action of the liquid on a microparticle as a result of relaxation of thermal spatial inhomogeneities is discussed.

Citation Download Citation

Sergey N. Bagayev, Valery A. Orlov, and Sergey V. Panov "Spatial thermal inhomogeneities as a source of Brownian motion", Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 67270T (9 July 2007); https://doi.org/10.1117/12.752305

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