Observation of Bistability and Hysteresis in Optical Binding of Two Dielectric Spheres

Metzger, Nikolaus Klaus; Dholakia, Kishan; Wright, E. M.

doi:10.1103/physrevlett.96.068102

Cited by 106 publications

(74 citation statements)

References 14 publications

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“…Whilst longitudinal binding (i.e. binding along the propagation axis) has been well characterized in a number of trapping geometries [23,24], the origin of lateral binding is still not well established. A non-linear systems approach may provide further insights into the observed pattern formation for such lateral binding, although in this case the granularity of the system would become increasingly important.…”

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confidence: 99%

Experimental Observation of Modulation Instability and Optical Spatial Soliton Arrays in Soft Condensed Matter

2007

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In this Letter we report observations of optically induced self-organization of colloidal arrays in the presence of un-patterned counter-propagating evanescent waves. The colloidal arrays formed along the laser propagation-axis are shown to be linked to the break-up of the incident field into optical spatial solitons, the lateral spacing of the arrays being related to modulation instability of the soft condensed matter system.

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confidence: 99%

Experimental Observation of Modulation Instability and Optical Spatial Soliton Arrays in Soft Condensed Matter

2007

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“…This process is largely uncontrollable and does not constitute any form of optical binding, 35 which we expect to see when using single mode fibre. The use of hot spots does allow multiple droplets to be trapped in different horizontal planes, and it may be that in future work we can optimise this process to allow controllable trapping of multiple droplets, allowing parallel processing of droplet composition, morphology and other chemical and thermodynamic processes.…”

Section: Dual Beam Fibre Trapping Of Aerosolsmentioning

confidence: 99%

Optical manipulation of airborne particles: techniques and applications

et al. 2008

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In the following paper, we discuss new methods to trap and manipulate airborne liquid aerosol droplets. We discuss the single gradient force trapping of water aerosols in the 2-14 micron diameter range using both 532 nm and 1064 nm light, as well as the holographic optical trapping of arrays of aerosols. Using this holographic technique, we are able to show controlled aerosol coagulation. We also discuss two techniques based on the radiation pressure trapping of aerosols, namely the dual beam fibre trap and the controlled guiding of aerosols using Bessel beams. We conclude with a discussion of new topics for study based upon these techniques and some possible applications.

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“…This work prompted a renewed attention to optical binding, and the longitudinal form has become the more widely studied system. [11][12][13][14][15][16][17] In a further development of theory, based on the adoption of advanced QED methods, results were then obtained in a form applicable to radiation fields with arbitrary polarization and beam geometry, delivering further physical insights into the fundamental mechanisms in operation. [18][19][20] One specific instance concerns particles of cylindrical symmetry such as carbon nanotubes (CNT).…”

Section: Introductionmentioning

confidence: 99%

Chiral discrimination in optical binding

Forbes

Andrews

2015

Phys. Rev. A

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The laser-induced intermolecular force that exists between two or more particles in the presence of an electromagnetic field is commonly termed 'optical binding'. Distinct from the single-particle forces that are at play in optical trapping at the molecular level, the phenomenon of optical binding is a manifestation of the coupling between optically induced dipole moments in neutral particles. In other, more widely known areas of optics, there are many examples of chiral discrimination -signifying the different response a chiral material has to the handedness of an optical input. In the present analysis, extending previous work on chiral discrimination in optical binding, a new mechanism is identified using a quantum electrodynamical approach. It is shown that the optical binding force between a pair of chiral molecules can be significantly discriminatory in nature, depending upon both the handedness of the interacting particles and the polarization of the incident light, and it is typically several orders of magnitude larger than previously reported.

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Observation of Bistability and Hysteresis in Optical Binding of Two Dielectric Spheres

Cited by 106 publications

References 14 publications

Experimental Observation of Modulation Instability and Optical Spatial Soliton Arrays in Soft Condensed Matter

Experimental Observation of Modulation Instability and Optical Spatial Soliton Arrays in Soft Condensed Matter

Optical manipulation of airborne particles: techniques and applications

Chiral discrimination in optical binding

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