Optical levitation in a Bessel light beam

Garcés-Chávez, V.; Roskey, Daniel E.; Summers, Michael D.; Melville, H.; McGloin, David; Wright, E. M.; Dholakia, Kishan

doi:10.1063/1.1814820

Cited by 132 publications

(43 citation statements)

References 15 publications

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“…These cover atom optics, particle physics, optical microprocessing, to mention a few. The most exiting achievement is the demonstration of micromanipulation of small objects in multiple planes -three dimensional optical tweezer [58] and realization of optical levitation of particles [59]. Trapping of cavitation bubbles in water with femtosecond light filaments has been demonstrated as well [60].…”

Section: Emerging Applicationsmentioning

confidence: 99%

Nonlinear localization of light

Dubietis¹

2006

Lithuanian J. Phys.

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We briefly overview historical, fundamental, and practical aspects of light wave propagation, where strong multidimensional localization and precise control of ultrashort signals is demanded. The main topic is focused on the state of art of recently discovered nonlinear conical waves, or so-called X-shaped light bullets, which have been demonstrated to appear spontaneously in many different, frequently encountered operating regimes in transparent gaseous, liquid, and solid media. Owing to unique features of white-light frequency spectrum, strong localization, deep-field stationarity, and hot-spot regeneration property, nonlinear conical waves have great potential in all applications requiring energy transfer to matter over very limited transverse areas in thick media, which thus suffer the short focal depth of conventional laser beams. Practical applications that cover many different areas ranging from nano-science to high-field physics are discussed.

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Section: Emerging Applicationsmentioning

confidence: 99%

Nonlinear localization of light

Dubietis¹

2006

Lithuanian J. Phys.

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“…The particles were levitated by a single vertically directed Gaussian beam, and the particles were shown to stably settle at the force equilibrium with gravity. Many reports have since been made on optical levitation by Gaussian beams and particles have also been levitated using a zero-order Bessel beam [13]. Another, more recent approach to vertically lift microparticles in water, has been investigated by Swartzlander et.al [14].…”

Section: Introductionmentioning

confidence: 99%

Optical transport, lifting and trapping of micro-particles by planar waveguides

Helle¹,

Ahluwalia²,

Hellesø³

2015

Opt. Express

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Optical waveguides can be used to trap and transport microparticles. The particles are held close to the waveguide surface by the evanescent field and propelled forward. We propose a new technique to lift and trap particles above the surface of the waveguides. This is made possible by a gap between two opposing, planar waveguides. The field emitted from each of the waveguide ends diverge fast, away from the substrate and into the cover-medium. By combining two fields propagating at an angle upwards and coming from opposite sides of a gap, particles can be stably lifted and trapped at the crossing of the two fields. Thus, particles are transported by waveguides leading to a gap, where they are lifted away from the substrate and trapped. The experiments are supported by numerical simulations of the forces on the micro-particles. Fluorescence imaging is used to track the particles in 3D with a precision of 50 nm.

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“…Another factor may have been the documented selfhealing effect of Bessel beams, which we have shown to form similar arrays in colloidal solutions. 39 For water droplets, the Bessel beam allowed guiding to occur over 2.5 mm. This is approximately ten times the distance achieved in the Gaussian beam, illustrated in Fig.…”

Section: Optical Guiding 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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Optical levitation in a Bessel light beam

Cited by 132 publications

References 15 publications

Nonlinear localization of light

Nonlinear localization of light

Optical transport, lifting and trapping of micro-particles by planar waveguides

Optical manipulation of airborne particles: techniques and applications

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