Optical manipulation of gold micro and nano-particles on silicon nitride waveguides: impact of polarization and particle size on gradient forces

Stéphane Gétin; Stéphanie Gaugiran; Jean-Marc Fedeli; Jacques Derouard

doi:10.1117/12.700635

9 February 2007 Optical manipulation of gold micro and nano-particles on silicon nitride waveguides: impact of polarization and particle size on gradient forces

Stéphane Gétin, Stéphanie Gaugiran, Jean-Marc Fedeli, Jacques Derouard

Author Affiliations +

Proceedings Volume 6483, Complex Light and Optical Forces; 64830E (2007) https://doi.org/10.1117/12.700635
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Kawata and Tani's [4] experiments showed that the evanescent field created on the surface of an ion exchanged waveguide could trap and move microparticles. This opened up the possibility of combining conventional optical trapping with integrated optics in order to create new microsystems for the manipulation of particles or biological objects. Recently, the use of strip silicon nitride waveguides increased the performances of these systems enabling higher particles speeds and reduced guided power [12]. Our experiments demonstrate that polarization affects drastically the way particles are propelled along the waveguide surface. For example in TM polarization, 0,6 &mgr;m diameter gold particles are moving along the center of the waveguide whereas in TE, they are propelled along its sides. Moreover, it appears that gradient forces involved in this phenomenon depend on the particle size. To understand this behavior, a numerical approach of the problem based on the finite element method has been developed. This method enables the calculation of the 3D distribution of the electric fields. The resulting optical forces are calculated thanks to the Maxwell stress tensor formalism. This first experimental and theoretical illustration of repulsive gradient forces on metallic particles opens up perspectives for polarization based sorting systems.

Citation Download Citation

Stéphane Gétin, Stéphanie Gaugiran, Jean-Marc Fedeli, and Jacques Derouard "Optical manipulation of gold micro and nano-particles on silicon nitride waveguides: impact of polarization and particle size on gradient forces", Proc. SPIE 6483, Complex Light and Optical Forces, 64830E (9 February 2007); https://doi.org/10.1117/12.700635

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Particles

Waveguides

Dielectric polarization

Gold

Silicon

Polarization

Electromagnetism

Show All Keywords

Keywords/Phrases

Search In:

Publication Years