Few Atom Detection and Manipulation Using Optical Nanofibres

Deasy, Kieran; Watkins, Amy; Morrissey, Michael; Schmidt, Regine; Chormaic, Síle Nic

doi:10.1007/978-3-642-11731-2_24

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…Evanescent waves in optical waveguides have received great attention recently due to the advantage of optical coupling with systems such as microresonators, [1][2][3] cold atoms, [4][5][6][7][8] their use in optical sorting, 9,10 their ability to form microcavities themselves, [11][12][13] and to support cavities. [14][15][16] Of the many available waveguide types, the tapered optical fiber -otherwise known as the optical micro-or nanofiber (MNF) -is an important device in these research fields because it is relatively easy to fabricate, produces a strong evanescent field, and can be directly integrated into existing fiber optic systems.…”

Section: Introductionmentioning

confidence: 99%

Contributed Review: Optical micro- and nanofiber pulling rig

Ward¹,

Maimaiti

Le³

et al. 2014

Review of Scientific Instruments

112

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We review the method of producing adiabatic optical micro-and nanofibers using a hydrogen/oxygen flame brushing technique. The flame is scanned along the fiber, which is being simultaneously stretched by two translation stages. The tapered fiber fabrication is reproducible and yields highly adiabatic tapers with either exponential or linear profiles. Details regarding the setup of the flame brushing rig and the various parameters used are presented. Information available from the literature is compiled and further details that are necessary to have a functioning pulling rig are included. This should enable the reader to fabricate various taper profiles, while achieving adiabatic transmission of ~ 99% for fundamental mode propagation. Using this rig, transmissions ranging from 85-95% for higher order modes in an optical nanofiber have been obtained.

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“…For normal operational parameters of a magneto-optical trap (MOT), atoms in the cloud absorb light from the cooling laser beams stimulating the atoms to an excited state. For atoms that are close to the surface of the ONF, a portion of the resultant spontaneous emission can couple directly into the guided mode of the fiber waist [66,67]. With the aid of a single photon counter module (SPCM) attached to the end of the fiber, photons can be detected and the specific attributes of the cold atom system can be determined.…”

Section: Emission Fluorescence Detection Of Cold Atomsmentioning

confidence: 99%

Spectroscopy, Manipulation and Trapping of Neutral Atoms, Molecules, and Other Particles Using Optical Nanofibers: A Review

Morrissey

Deasy

Frawley

et al. 2013

Sensors

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The use of tapered optical fibers, i.e., optical nanofibers, for spectroscopy and the detection of small numbers of particles, such as neutral atoms or molecules, has been gaining interest in recent years. In this review, we briefly introduce the optical nanofiber, its fabrication, and optical mode propagation within. We discuss recent progress on the integration of optical nanofibers into laser-cooled atom and vapor systems, paying particular attention to spectroscopy, cold atom cloud characterization, and optical trapping schemes. Next, a natural extension of this work to molecules is introduced. Finally, we consider several alternatives to optical nanofibers that display some advantages for specific applications.

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“…An alternative option would be to use optical nanofibers. Such fibers have recently received much attention [18,19] because the coupling to the evanescent guided modes of a nanofiber allows for easy-to-implement atom trapping [20][21][22] and detection [23][24][25]. This coupling increases in strength as the fiber diameter reduces and the atoms approach the fiber surface.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous emission and energy shifts of a Rydberg rubidium atom close to an optical nanofiber

et al. 2020

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In this paper, we report on numerical calculations of the spontaneous emission rates and Lamb shifts of a 87 Rb atom in a Rydberg-excited state (n 30) located close to a silica optical nanofiber. We investigate how these quantities depend on the fiber's radius, the distance of the atom to the fiber, the direction of the atomic angular momentum polarization, as well as the different atomic quantum numbers. We also study the contribution of quadrupolar transitions, which may be substantial for highly polarizable Rydberg states. Our calculations are performed in the macroscopic quantum electrodynamics formalism, based on the dyadic Green's function method. This allows us to take dispersive and absorptive characteristics of silica into account; this is of major importance since Rydberg atoms emit along many different transitions whose frequencies cover a wide range of the electromagnetic spectrum. Our work is an important initial step toward building a Rydberg atom-nanofiber interface for quantum optics and quantum information purposes.

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“…In the context of cold atoms, the optical nanofiber has established itself as an important tool not only for passive probing of thermal gases and cold atomic samples [1][2][3], but now also as an essential tool in spectroscopy and optical trapping (4)(5)(6).…”

Section: Introductionmentioning

confidence: 99%

1- and 2-photon absorption by laser-cooled 85Rb using an optical nanofiber

Russell¹,

Daly²,

Chormaic³

2012

AIP Conference Proceedings

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Articles you may be interested inBroadband transient absorption spectroscopy with 1-and 2-photon excitations: Relaxation paths and cross sections of a triphenylamine dye in solution ( ns 1/2 + np 1/2 )0 g − Rb 2 and Cs 2 photo-associative spectroscopy of weakly bound levels: Lu-Fano analysis coupled to an improved LeRoy-Bernstein formula.Optical transfer cavity stabilization using current-modulated injection-locked diode lasers Rev. Sci. Instrum. 77, 093105 (2006); 10.1063/1.2337094 Collimated, single-pass atom source from a pulsed alkali metal dispenser for laser-cooling experiments Rev. Sci. Instrum. 76, 023106 (2005);Abstract. The characteristics of a cold cloud of 85 Rb can be non-destructively examined using an optical nanofiber. The nanofiber is a submicron-diameter cylindrical waveguide fabricated from commercially-available optical fiber using a heat-and-pull rig. The nanofiber can be used as a 'dark' or 'bright' probe depending on whether laser light is coupled into the nanofiber. We demonstrate the use of an optical nanofiber as an absorption spectroscopy tool for cold atoms. A frequency-scanned probe beam is launched through the nanofiber and the resonant light is absorbed at the waist of the nanofiber by nearby cold 85 Rb atoms. We present recent singlephoton absorption results and comment on the role of surface interactions. Future work on 2photon absorption using excited state electronic transitions in 85 Rb is discussed.

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Few Atom Detection and Manipulation Using Optical Nanofibres

Cited by 6 publications

References 14 publications

Contributed Review: Optical micro- and nanofiber pulling rig

Spectroscopy, Manipulation and Trapping of Neutral Atoms, Molecules, and Other Particles Using Optical Nanofibers: A Review

Spontaneous emission and energy shifts of a Rydberg rubidium atom close to an optical nanofiber

1- and 2-photon absorption by laser-cooled 85Rb using an optical nanofiber

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