Optical vortex trapping of particles

Gahagan, K. T.; Swartzlander, Grover A.

doi:10.1364/ol.21.000827

Cited by 839 publications

(387 citation statements)

References 11 publications

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“…Figure 2 is the interference pattern obtained from the experimental setup shown in Figure 1(a) in which we record the formation of optical vortex arrays (OVAs) using the interference of three plane waves. At the exit of CBS 4 as shown in the Figure 1(a), we obtain two optical vortex arrays International Journal of Optics (Figure 1(a)) is similar to the generation of vortex lattices by four or more plane waves as has been demonstrated previously using multiple beam interferometers [15][16][17].…”

Section: Reconstruction Of Phasesupporting

confidence: 73%

“…Both IFP 1 and 2 propagate in space and reflected by mirror M 1 and again transmitted through CBS 4 . The beam input 3 in the second (lower) arm of the interferometer is reflected by CBS 3 and after propagation in space again reflected by CBS 4 where it interferes with IFP 1 and IFP 2 at the output. At the end of the interferometer, optical vortex arrays are generated by interference of three beams.…”

Section: Optical Vortex Array Generationmentioning

confidence: 99%

“…An interesting aspect of a vortex beam is that it possesses orbital angular momentum (OAM). Optical vortices play significant role for studying OAM of light fields [2,3] and have been widely used in the area of optical tweezers [4], singular optics [5], optical solitons [6], and optical metrology [7,8]. The most commonly used methods for generating OVs with single or multiple charge are synthetic holograms [9], spiral phase plates [10], liquidcrystal cells [11], dielectric wedge [12], and higher-order laser beams [13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Generation of Optical Vortex Arrays Using Single-Element Reversed-Wavefront Folding Interferometer

Singh

Senthilkumaran

et al. 2012

International Journal of Optics

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Optical vortex arrays have been generated using simple, novel, and stable reversed-wavefront folding interferometer. Two new interferometric configurations were used for generating a variety of optical vortex lattices. In the first interferometric configuration one cube beam splitter (CBS) was used in one arm of Mach-Zehnder interferometer for splitting and combining the collimated beam, and one mirror of another arm is replaced by second CBS. At the output of interferometer, three-beam interference gives rise to optical vortex arrays. In second interferometric configuration, a divergent wavefront was made incident on a single CBS which splits and combines wavefronts leading to the generation of vortex arrays due to four-beam interference. It was found that the orientation and structure of the optical vortices can be stably controlled by means of changing the rotation angle of CBS.

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Section: Reconstruction Of Phasesupporting

confidence: 73%

Section: Optical Vortex Array Generationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Generation of Optical Vortex Arrays Using Single-Element Reversed-Wavefront Folding Interferometer

Singh

Senthilkumaran

et al. 2012

International Journal of Optics

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“…The self-focusing action of the nonlinearity compensated by diffraction results in self-sustained bright spatial solitons [12], which can exist as isolated states or form complex ensembles, sometimes interacting in a particle-like fashion [169][170][171][172][173][174][175]. Also, dark solitons [176][177][178][179][180][181][182][183][184] and optical vortices [185][186][187][188][189][190][191][192][193][194][195][196] have been described and experimentally observed. In such a mirrorless configuration feedback is absent, and one obtains not a spontaneous pattern formation, but just a nonlinear transformation of the input distribution.…”

Section: Mirrorless Configurationmentioning

confidence: 99%

Transverse Patterns in Nonlinear Optical Resonators

Staliūnas

Sánchez‐Morcillo

2003

Springer Tracts in Modern Physics

176

156

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This book is devoted to the formation and dynamics of localized structures (vortices, solitons) and of extended patterns (stripes, hexagons, tilted waves) in nonlinear optical resonators such as lasers, optical parametric oscillators, and photorefractive oscillators. Theoretical analysis is performed by deriving order parameter equations, and also through numerical integration of microscopic models of the systems under investigation. Experimental observations, and possible technological implementations of transverse optical patterns are also discussed. A comparison with patterns found in other nonlinear systems, i.e. chemical, biological, and hydrodynamical systems, is given.

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“…Optimum conditions for particle trapping are dictated by the optical properties of the particles and the surrounding medium, as well as the physical nature of the light-mediated trapping forces. For instance, while high light intensity attracts and traps transparent high-index objects in a low-index medium, it in fact repels low index particles in a high index environment [166]. That is why hollow (or doughnut) beams are used for efficient trapping in the latter case.…”

Section: Introductionmentioning

confidence: 99%

Conical refraction: fundamentals and applications

Turpin

Loiko

Kalkandjiev

et al. 2016

Laser & Photonics Reviews

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A mis padres, hermanos, sobrinos y a Raquel AcknowledgmentsTot té un principi i un final i aquest serà el punt final a una etapa de la meva vida la qual estic segur que d'aquí uns anys, quan miri enrere, veuré que ha estat probablement la que ha tingut una major rellevància tant a nivell personal com científic. Quan vaig acabar la carrera no tenia gaire clar quin camí seguir però vaig tenir la sort de parlar amb qui ha estat el meu director de tesi, el Jordi, qui em va guiar i va posar tota la seva confiança en mi des del primer moment. Em va oferir un tema original i es va aventurar a dirigir una tesi amb una forta vessant experimental, tot un atreviment venint d'un teòric! Quan vaig començar el Màster, si m'haguessin dit on he arribat 5 anys després mai m'ho hauria cregut i, Jordi, tu tens gran part de culpa de tot això. Moltes gràcies per haver confiat en mi des del primer dia, per haver-te mostrat sempre tan orgullós de tot el que he fet, per haver estat sempre disponible i per ajudar-me i animar-me quan he passat moments durs durant aquest anys. M'has ensenyat a ser un bon científic, a moure'm dins aquest món, a creure em mi i a ser una millor persona. Mai t'estaré prou agraït per tot això i per haver sigut tan proper amb els teus cotilleos, converses de futbol, política, noies, etc. dinant al bar. Has estat com un pare per a mi (bueno, un germà gran, que tampoc ets tan vell per a ser Mompare :P). Si el Jordi ha estat el meu pare en la ciència, el Yury ha estat el meu gurú científic. Mai he trobat una persona tan pacient, que sàpiga tant de qualsevol tema i amb tanta dedicació com tu. M'has ensenyat a ser riguròs, a tenir un mètode, la importància de estar al dia de tot el que es fa en el cap d'estudi, a programar, i un llarg etcètera. En resum, m'has ajudat a donar-me forma a mi mateix com a científic i a tenir perseverança en el que faig. Tot això sense oblidar que per a mi ets un gran amic! Seguidament, també he donar les gràcies al Todor, una de les persones més enèrgiques que conec i amb més passió per la ciència. Tu vas iniciar tot el tema de la refracció cònica al nostre grup i has demostrat que ets realment qui més coneix de cristalls i del fenomen en si. Si no hagués estat per tu, no podríem haver començat res d'això i no podríem haver explotat el fenomen ni una quarta part del que hem fet. Ets un exemple per tenir sempre un somriure a la cara i per aquesta iii iv força que et fa tirar endavant tots els teus projectes. També vull donar les gràcies a altres companys del Grup d'Òptica, començant per la Verònica, que va passar de ser una "professora de la carrera" a ser el meu ideal de constància i l'esforç. Ets un exemple professional a més a més d'una persona molt més propera i alegra del que pot semblar a primera vista. A Ramón también le tengo que agradecer su ayuda y su disponibilidad a lo largo de estos años, su paciencia cuando ha tenido que soportar mis imitaciones y su alegría y naturalidad en todo momento. Amb el Francesc també he compartit molts bons moments, sobretot a les diverses activit...

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Optical vortex trapping of particles

Cited by 839 publications

References 11 publications

Generation of Optical Vortex Arrays Using Single-Element Reversed-Wavefront Folding Interferometer

Generation of Optical Vortex Arrays Using Single-Element Reversed-Wavefront Folding Interferometer

Transverse Patterns in Nonlinear Optical Resonators

Conical refraction: fundamentals and applications

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