Reduced volume and reflection for bright optical tweezers with radial Laguerre-Gauss beams

Béguin, J. -B.; Laurat, J.; Luan, X.; Burgers, A. P.; Qin, Z.; Kimble, H. J.

doi:10.48550/arxiv.2001.11498

Cited by 3 publications

(3 citation statements)

References 40 publications

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“…[15,20,21,46] For the APCW as well as more complicated structures such as 2D photonic crystals in Figure 1b, we have recently proposed a quite different scheme for direct delivery with high efficiency of single atoms from free-space tweezer traps into z 1 traps at the surfaces of nanophotonic structures. [47] In this work, we exploit the rapid spatial variation of the Gouy phase for optical tweezers formed by radial Laguerre-Gauss beams to reduce the trap size in the axial direction.…”

Section: Single Atom Trapping In a Tweezer Array Near Pcwsmentioning

confidence: 99%

The Integration of Photonic Crystal Waveguides with Atom Arrays in Optical Tweezers

et al. 2020

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Integrating nanophotonics and cold atoms has drawn increasing interest in recent years due to diverse applications in quantum information science and the exploration of quantum many-body physics. For example, dispersion-engineered photonic crystal waveguides (PCWs) permit not only stable trapping and probing of ultracold neutral atoms via interactions with guided-mode light, but also the possibility to explore the physics of strong, photon-mediated interactions between atoms, as well as atom-mediated interactions between photons. While diverse theoretical opportunities involving atoms and photons in 1-D and 2-D nanophotonic lattices have been analyzed, a grand challenge remains the experimental integration of PCWs with ultracold atoms. Here we describe an advanced apparatus that overcomes several significant barriers to current experimental progress with the goal of achieving strong quantum interactions of light and matter by way of single-atom tweezer arrays strongly coupled to photons in 1-D and 2-D PCWs. Principal technical advances relate to efficient free-space coupling of light to and from guided modes of PCWs, silicate bonding of silicon chips within small glass vacuum cells, and deterministic, mechanical delivery of single-atom tweezer arrays to the near fields of photonic crystal waveguides. 1 arXiv:2003.01236v1 [physics.optics]

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Section: Single Atom Trapping In a Tweezer Array Near Pcwsmentioning

confidence: 99%

The Integration of Photonic Crystal Waveguides with Atom Arrays in Optical Tweezers

et al. 2020

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“…In this regime, Gauss's law ∇ • E = 0 couples different polarization components of laterally bounded fields, leading to a complex polarization structure in the focal region even for fields which are homogeneously polarized in the paraxial approximation [15][16][17][18][19]. Both radially polarized beams [20][21][22][23][24][25] and polarization effects [26][27][28][29] have been studied in optical tweezers in the past, and existing approaches to 3D sensing include methods with multiple beams [30], imaging [31,32], and digital holography [33]. Of particular interest for the present work is the concept of back focal plane interferometry [34][35][36][37][38][39][40], where a particle-position-dependent phase delay between incoming and scattered field, due to the Gouy phase, is exploited for axial position sensing.…”

Section: Introductionmentioning

confidence: 99%

Microsphere kinematics from the polarization of tightly focused nonseparable light

Berg-Johansen,

Neugebauer,

Aiello

et al. 2020

Preprint

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Recently, it was shown that vector beams can be utilized for fast kinematic sensing via measurements of their global polarization state [Optica 2(10), 864 (2015)]. The method relies on correlations between the spatial and polarization degrees of freedom of the illuminating field which result from its nonseparable mode structure. Here, we extend the method to the nonparaxial regime. We study experimentally and theoretically the far-field polarization state generated by the scattering of a dielectric microsphere in a tightly focused vector beam as a function of the particle position. Using polarization measurements only, we demonstrate position sensing of a Mie particle in three dimensions. Our work extends the concept of back focal plane interferometry and highlights the potential of polarization analysis in optical tweezers employing structured light.

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“…For example, in a top-illuminating optical tweezer trap implemented in Ref. 29 or 31 , membrane reflection and interference result in a lattice of micro traps formed within a tweezer beam as shown in Fig. 2(c).…”

mentioning

confidence: 99%

Efficiently-coupled microring circuit for on-chip cavity QED with trapped atoms

Chang,

Zhou,

Zhu

et al. 2020

Preprint

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Reduced volume and reflection for bright optical tweezers with radial Laguerre-Gauss beams

Cited by 3 publications

References 40 publications

The Integration of Photonic Crystal Waveguides with Atom Arrays in Optical Tweezers

The Integration of Photonic Crystal Waveguides with Atom Arrays in Optical Tweezers

Microsphere kinematics from the polarization of tightly focused nonseparable light

Efficiently-coupled microring circuit for on-chip cavity QED with trapped atoms

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