Application of optical trapping to beam manipulation in optofluidics

Domachuk, P.; Cronin‐Golomb, Mark; Eggleton, B.J.; Mutzenich, Simon; Rosengarten, Gary; Mitchell, Arnan

doi:10.1364/opex.13.007265

Cited by 57 publications

(31 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solutions are much cheaper and easier to produce than crystals and are currently intensively investigated in the field of optofluidics, where fluidic and optical components are combined to yield highly tunable devices. [24,25] Furthermore it allows embedding of the photorefractive complexes in suitable matrices such as polymers or glasses in order to extend their application range.…”

Section: No]mentioning

confidence: 99%

Photoinduced Nitrosyl Linkage Isomers Uncover a Variety of Unconventional Photorefractive Media

et al. 2007

View full text Add to dashboard Cite

The ongoing search for new photorefractive materials offering a high photosensitive flexibility is triggered by the limited tuning ability of conventional photorefractive materials, such as electro-optic crystals, photopolymers, or liquid crystals. One of the latest discovered photorefractive materials is Na 2 [Fe(CN) 5 NO] · 2H 2 O, in which metastable linkage isomers of the nitrosyl group can be generated by light irradiation resulting in huge changes of the refractive index up to Dn ∼ 10 -2 .Here we show that this type of photorefraction is a general property arising from the generation of linkage isomers and can thus be found in many compounds containing [ML 5 NO] m± complexes, where M is a transition metal, L a ligand, and m the formal charge of the anion/cation. The benefit of this generality is reflected in the tailoring properties of the photorefractive response such as the spectral sensitivity simply by selecting different representatives of the [ML 5 NO] m± compounds.Conventional photorefractive materials, [1] where the lightinduced modulation of the refractive index is caused by the linear electro-optic effect (Pockels effect), are widely applied in nonlinear optics.[2] They feature reversible photorefractivity without chemical processing allowing for dynamical holography, [3] and the kinetics of hologram formation is described by the well-known Kiev equations. [4] In recent years a second class of reversible photorefractive media for dynamical holography has been established, the unconventional photorefractive materials. Here an optical bistability is at the origin of photorefraction and the kinetics show a characteristic transient behavior.[5] The unique properties of this class were com-

show abstract

Section: No]mentioning

confidence: 99%

Photoinduced Nitrosyl Linkage Isomers Uncover a Variety of Unconventional Photorefractive Media

et al. 2007

View full text Add to dashboard Cite

show abstract

“…Particles that are significantly smaller than the wavelength can be used to change the refractive index or absorption coefficient of the medium as a whole 56 . Particles that are significantly larger than the wavelength can be treated as a spherical focusing lens in the medium 57,58 . Quantum dots can be designed to fluoresce or scatter with dramatically improved efficiency 59 .…”

Section: Solids In Fluidsmentioning

confidence: 99%

“…The ability to optically control particles can be used to create a range of novel optofluidic devices. A clear and elegant example is the optofluidic beam manipulator demonstrated by Dumachuk et al 57 . The general concept is as follows.…”

Section: Solids In Fluidsmentioning

confidence: 99%

Developing optofluidic technology through the fusion of microfluidics and optics

Psaltis

Quake

Yang

2006

Nature

1,592

939

View full text Add to dashboard Cite

We describe devices in which optics and fluidics are used synergistically to synthesize novel functionalities. Fluidic replacement or modification leads to reconfigurable optical systems, whereas the implementation of optics through the microfluidic toolkit gives highly compact and integrated devices. We categorize optofluidics according to three broad categories of interactions: fluid-solid interfaces, purely fluidic interfaces and colloidal suspensions. We describe examples of optofluidic devices in each category.Optofluidics refers to a class of optical systems that are synthesized with fluids. Fluids have unique properties that cannot be found in solid equivalents, and these properties can be used to design novel devices. Examples of such properties include: the ability to change the optical property of the fluid medium within a device by simply replacing one fluid with another; the optically smooth interface between two immiscible fluids; and the ability of flowing streams of miscible fluids to create gradients in optical properties by diffusion. Most optical systems are currently made with solid materials such as glasses, metals and semiconductors, but there are cases in which it has been advantageous to use fluids. The oil-immersion microscope 1 , liquid mirrors for telescopes 2 , liquid-crystal displays 3 and electrowetting lenses 4 are good examples. Here we describe the various methods used to implement optofluidic devices with recently developed microfluidic technologies that allow accurate control of liquids on small spatial scales. Integration and reconfigurability are two major advantages associated with optofluidics. Whereas microfluidics has made it possible to integrate multiple fluidic tasks on a chip, most optical components, such as the light source, sensors, lenses and waveguides, remained off the chip. Optofluidic integration combines optics and microfluidics on the same chip by building the optics out of the same fluidic toolkit. The second advantage of optofluidics lies in the ease with which one can change the optical properties of the devices by manipulating fluids.Microfluidics is a burgeoning field with important applications in areas such as biotechnology, chemical synthesis and analytical chemistry. Many of these applications of microfluidics are discussed elsewhere in this issue, and for the purposes of this Review we emphasize only a few salient points. First, there is now an extensive body of literature on how the physical properties of fluids that are available only on small spatial scales can be exploited for device functionality [5][6][7] . Many of these effects can also be used to control optical properties. Second, technological advances in device fabrication have made it possible to build miniaturized devices with complex networks of channels, valves, pumps and other methods of fluidic encapsulation and manipulation 8 . This creates a powerful set of tools for fluidic control, and because the feature sizes in these systems are shrinking over time, they will inevitably appro...

show abstract

“…Micro-fluidic devices have found an exquisite position in the biomedical technology in recent decades due to their successful implementation in the development of DNA chips, lab-on-a-chip and optofluidic technologies [1][2][3][4][5][6][7][8][9]. Micro-channels have been implemented as pseudo blood vessels with confocal Particle Image Velocimetry (micro-PIV) as the detection system to better understand blood rheology [4,7].…”

Section: Introductionmentioning

confidence: 99%

Real Time Monitoring of Fluorescent Particles in Micro-Channels by High Resolution Dual Modality Probe Imaging

Sathiyamoorthy¹,

Mohankumar²,

Murukeshan³

2011

OPJ

View full text Add to dashboard Cite

Imaging of micro particles in micro-fluidic channels is one of the recent thrust areas in research as it provides more flexibility in setup and analysis compared to conventional microscopy. However, a probe based imaging scheme, with achievable high resolutions incorporating multimodal analysis is one of the challenges researchers have been facing. In this context, this paper illustrates a simple dual modality high resolution flexible probe imaging system for imaging applications in micro/optofluidic channels. The proposed system exhibits axial and lateral resolution of about 16 μm and 3.12 μm respectively. This proposed system also exhibits a modulation transfer function (MTF) of about 38.42%. The performance of the system is validated by imaging micro particles in a microchannel and obtaining the fluorescent emission spectrum simultaneously.

show abstract

Application of optical trapping to beam manipulation in optofluidics

Cited by 57 publications

References 14 publications

Photoinduced Nitrosyl Linkage Isomers Uncover a Variety of Unconventional Photorefractive Media

Photoinduced Nitrosyl Linkage Isomers Uncover a Variety of Unconventional Photorefractive Media

Developing optofluidic technology through the fusion of microfluidics and optics

Real Time Monitoring of Fluorescent Particles in Micro-Channels by High Resolution Dual Modality Probe Imaging

Contact Info

Product

Resources

About