Optofluidic

Rapid Chemical Vapor Detection Using Optofluidic Ring Resonators... 

Sun, Y. Shopova, S. I. Frye Mason, G. Fan, X., Rapid chemical vapor sensing using optofluidic ring resonators, Opt. Lett. 2008, 33, 788 790... 

Levy, U. Shamai, R., Tunable optofluidic devices, Microfluidics and Nanofluidics 2008, 4, 97 105... 

Label-Free Biosensing with the Optofluidic Ring Resonator... 

Fig. 16.2 Nanoscale optofluidic sensor arrays (NOSA). (a) 3D illustration of a NOSA sensing element. It consists of a ID photonic crystal microcavity, which is evanescently coupled to a Si waveguide, (b) The electric field profile for the fundamental TE mode propagating through an air clad Si waveguide on SiOi. (c) SEM of a NOSA device array. It illustrates how this architecture is capable of two dimensional multiplexing, thus affording a large degree of parallelism, (d) Actual NOSA chip with an aligned PDMS fluidic layer on top. Reprinted from Ref. 37 with permission. 2008 Optical Society of America...

In this chapter, we have attempted to describe broadly the advantages available from the use of planar nanophotonic devices as biomolecular detectors. We have reviewed the state of the art in these devices and described a few technical challenges involved in improving these devices. In the context of these challenges, we have introduced our Nanoscale Optofluidic Sensor Arrays which represents our attempt to address them. 

Erickson, D. Mandal, S. Yang, A. Cordovez, B., Nanobiosensors Optofluidic, electrical and mechanical approaches to biomolecular detection at the nanoscale, Microfluid. Nanofluid. 2008, 4, 33 52... 

Mandal, S. Erickson, D., Nanoscale optofluidic sensor arrays, Opt. Express 2008, 16, 1623 1631... 

Abstract The self-organized and molecularly smooth surface on liquid microdroplets makes them attractive as optical cavities with very high quality factors. This chapter describes the basic theory of optical modes in spherical droplets. The mechanical properties including vibrational excitation are also described, and their implications for microdroplet resonator technology are discussed. Optofluidic implementations of microdroplet resonators are reviewed with emphasis on the basic optomechanical properties. 

Single Molecule Analysis with Planar Optofluidics... 

The need for improved sensor performance has led to the emergence of micro and nanofluidics. These fields seek to develop miniaturized analysis systems that combine the desired attributes in a compact and cost-effective setting. These platforms are commonly labeled as labs-on-chip or micro total analysis systems (pTAS)2, often using optical methods to realize a desired functionality. The preeminent role that optics play has recently led to the notion of optofluidics as an independent field that deals with devices and methods in which optics and fluidics enable each other3. Most of the initial lab-on-chip advances, however, occurred in the area of fluidics, while the optical components continued to consist largely of bulk components such as polarizers, filters, lenses, and objectives. 

ARROW-based optofluidic devices for chemical and biological sensing have several desirable optical attributes, including ... 

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