Work

Coupled laser molecular trapping, cluster assembly, and deposition fed by laser-induced Marangoni convection

Year: 2008

Type: article

Abstract: A coupled mechanism for molecular aggregation in a thin water solution film by laser-tweezers is suggested based on (i) simulation of light intensity distribution and (ii) order of magnitude analysis of heat and mass transport induced by Marangoni convection. The analysis suggests that the laser induced temperature distribution develops within 1 ms and Marangoni convection flow commences within 0.01-1 s, which increases by 1-2 orders of magnitude the mass transfer of dissolved molecules into the laser focus where they are trapped and aggregate by attractive van der Waals forces. This mechanism, considered for the particular case of polymer assembly, suggests that it can also be successfully applied for assembling other types of clusters and molecular aggregates from solutions.

Source: Optics Express

DOI: 10.1364/oe.16.005673

Authors: Oleg A. Louchev, Saulius Juodkazis, Naoki Murazawa, Satoshi Wada, Hiroaki Misawa

Institutions: RIKEN, Megaopto Co., Ltd. (Japan), Research Institute for Electronic Science, Hokkaido University

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W1998351491

FWCI: 1.902

Cites:

Cited by: 60

Related to: 10