Tuneable optical waveguide based on dielectrophoresis and microfluidics

Aminuddin A. Kayani; Adam F. Chrimes; Khashayar Khoshmanesh; Kourosh Kalantar-zadeh; Arnan Mitchell

doi:10.1117/12.887184

13 May 2011 Tuneable optical waveguide based on dielectrophoresis and microfluidics

Aminuddin A. Kayani, Adam F. Chrimes, Khashayar Khoshmanesh, Kourosh Kalantar-zadeh, Arnan Mitchell

Proceedings Volume 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III; 803134 (2011) https://doi.org/10.1117/12.887184
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

In this work, an array of dielectrophoretic curved microelectrodes patterned in a microfluidic channel and integrated with a multimode rib polymeric waveguide is demonstrated. The microfluidic channel is infiltrated with suspended silica (SiO₂) and tungsten trioxide (WO₃) nanoparticles. The optofluidic system is found to be sensitive and responds not only to the infiltration of nanoparticle suspensions in the microfluidic channel, but also to the magnitude and frequencies of dielectrophoretic forces applied on the nanoparticles. The nanoparticles can be uniformly concentrated or repelled from the region between the curved microelectrode tips forming either a dense stream of flowing nanoparticles or a region void of nanoparticles in the evanescent sensitive region of the polymeric waveguide. The concentration and repulsion of nanoparticles from this region creates a refractive index gradient in the upper cladding of the polymeric waveguide. These conditions made it possible for light to either remain guided or be scattered as a function of dielectrophoretic settings applied on the nanoparticles. The results demonstrate that we successfully developed a novel tuneable polymeric waveguide based on dielectrophoretic assembly of nanoparticles suspended in fluids.

Citation Download Citation

Aminuddin A. Kayani, Adam F. Chrimes, Khashayar Khoshmanesh, Kourosh Kalantar-zadeh, and Arnan Mitchell "Tuneable optical waveguide based on dielectrophoresis and microfluidics", Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 803134 (13 May 2011); https://doi.org/10.1117/12.887184

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